Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr
The high-entropy alloys (HEA) AlxFeCoNiCuCr (x = 1.0, 1.5, 1.8) in cast state are investigated by means of X-ray diffraction, Mössbauer spectroscopy, magnetic and dilatometric methods. Two-phase state in the HEA and the increase of the crystal lattice parameter а of the f.c.c. and b.c.c. phases are...
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| Опубліковано в: : | Металлофизика и новейшие технологии |
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| Дата: | 2015 |
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Інститут металофізики ім. Г.В. Курдюмова НАН України
2015
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr / V. M. Nadutov, S. Yu. Makarenko, Ye. O. Svystunov // Металлофизика и новейшие технологии. — 2015. — Т. 37, № 7. — С. 987-1000. — Бібліогр.: 23 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859646499058614272 |
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| author | Nadutov, V.M. Makarenko, S.Yu. Svystunov, Ye.O. |
| author_facet | Nadutov, V.M. Makarenko, S.Yu. Svystunov, Ye.O. |
| citation_txt | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr / V. M. Nadutov, S. Yu. Makarenko, Ye. O. Svystunov // Металлофизика и новейшие технологии. — 2015. — Т. 37, № 7. — С. 987-1000. — Бібліогр.: 23 назв. — англ. |
| collection | DSpace DC |
| container_title | Металлофизика и новейшие технологии |
| description | The high-entropy alloys (HEA) AlxFeCoNiCuCr (x = 1.0, 1.5, 1.8) in cast state are investigated by means of X-ray diffraction, Mössbauer spectroscopy, magnetic and dilatometric methods. Two-phase state in the HEA and the increase of the crystal lattice parameter а of the f.c.c. and b.c.c. phases are detected. The decrease of the Curie temperature and the saturation magnetization upon deviation of Al content from equimolar composition are found out. Inhomogeneous magnetic order characterizes the studied HEA. For the studied HEA, the magnetic moment 0.2—0.4 μB and the average thermal expansion coefficient <α> = 12.4∙10⁻⁶ К⁻¹ in the temperature range of 135—545 K are determined.
Рентґеновою дифракцією, Мессбауеровою спектроскопією, магнетним і дилатометричним методами досліджено структуру та властивості високоентропійних стопів (ВЕС) AlxFeCoNiCuCr (х = 1,0, 1,5, 1,8) у литому стані. Виявлено двофазний стан ВЕС і зростання параметра кристалічної ґратниці а ОЦК- і ГЦК-фаз. Встановлено зниження температури Кюрі і намагнетованости наситу при відхилі концентрації Al від еквіатомового складу. Вивчені ВЕС характеризуються неоднорідним магнетним ладом. Для інтервалу температур 135—545 К визначено магнетний момент 0,2—0,4 μB і середнє значення температурного коефіцієнта теплового розширення <α> = 12.4∙10⁻⁶ К⁻¹ досліджуваних ВЕС.
Рентгеновской дифракцией, мёссбауэровской спектроскопией, магнитным и дилатометрическим методами исследованы структура и свойства высокоэнтропийных сплавов (ВЭС) AlxFeCoNiCuCr (х = 1,0, 1,5, 1,8) в литом состоянии. Выявлено двухфазное состояние ВЭС и рост параметра кристаллической решётки a ОЦК- и ГЦК-фаз. Обнаружено снижение температуры Кюри и намагниченности насыщения при отклонении содержания Al от эквиатомного состава. Изученные ВЭС характеризуются неоднородным магнитным порядком. Для интервала температур 135—545 К определён магнитный момент 0,2—0,4 μB и среднее значение температурного коэффициента теплового расширения <α> = 12,4∙10⁻⁶ К⁻¹ исследуемых ВЭС.
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| fulltext |
987
ЭЛЕКТРОННЫЕ СТРУКТУРА И СВОЙСТВА
PACS numbers:61.05.Qr, 61.66.Dk,65.40.De,65.40.gd,75.30.Cr,76.80.+y, 81.05.Bx
Effect of Al Content on Magnetic Properties and Thermal
Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr
V. M. Nadutov, S. Yu. Makarenko, and Ye. O. Svystunov
G. V. Kurdyumov Institute for Metal Physics, N. A. S. of Ukraine,
36 Academician Vernadsky Blvd.,
UA-03680 Kyiv, Ukraine
The high-entropy alloys (HEA) AlxFeCoNiCuCr (x 1.0, 1.5, 1.8) in cast state
are investigated by means of X-ray diffraction, Mössbauer spectroscopy,
magnetic and dilatometric methods. Two-phase state in the HEA and the in-
crease of the crystal lattice parameter а of the f.c.c. and b.c.c. phases are de-
tected. The decrease of the Curie temperature and the saturation magnetiza-
tion upon deviation of Al content from equimolar composition are found out.
Inhomogeneous magnetic order characterizes the studied HEA. For the stud-
ied HEA, the magnetic moment 0.2—0.4B and the average thermal expansion
coefficient <> 12.410
6
K
1
in the temperature range of 135—545 K are
determined.
Рентґеновою дифракцією, Мессбауеровою спектроскопією, магнетним і
дилатометричним методами досліджено структуру та властивості високо-
ентропійних стопів (ВЕС) AlxFeCoNiCuCr (х 1,0, 1,5, 1,8) у литому стані.
Виявлено двофазний стан ВЕС і зростання параметра кристалічної ґрат-
ниці а ОЦК- і ГЦК-фаз. Встановлено зниження температури Кюрі і нама-
гнетованости наситу при відхилі концентрації Al від еквіатомового скла-
ду. Вивчені ВЕС характеризуються неоднорідним магнетним ладом. Для
інтервалу температур 135—545 К визначено магнетний момент 0,2—0,4B і
середнє значення температурного коефіцієнта теплового розширення
<> 12,410
6
К
1
досліджуваних ВЕС.
Рентгеновской дифракцией, мёссбауэровской спектроскопией, магнит-
ным и дилатометрическим методами исследованы структура и свойства
высокоэнтропийных сплавов (ВЭС) AlxFeCoNiCuCr (х 1,0, 1,5, 1,8) в ли-
том состоянии. Выявлено двухфазное состояние ВЭС и рост параметра
кристаллической решётки a ОЦК- и ГЦК-фаз. Обнаружено снижение
температуры Кюри и намагниченности насыщения при отклонении со-
держания Al от эквиатомного состава. Изученные ВЭС характеризуются
неоднородным магнитным порядком. Для интервала температур 135—
545 К определён магнитный момент 0,2—0,4B и среднее значение темпе-
Металлофиз. новейшие технол. / Metallofiz. Noveishie Tekhnol.
2015, т. 37, № 7, сс. 987—1000
Оттиски доступны непосредственно от издателя
Фотокопирование разрешено только
в соответствии с лицензией
2015 ИМФ (Институт металлофизики
им. Г. В. Курдюмова НАН Украины)
Напечатано в Украине.
988 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
ратурного коэффициента теплового расширения <> 12,410
6
К
1
ис-
следуемых ВЭС.
Key words: high-entropy alloys, structure, magnetic properties, thermal ex-
pansion, Mössbauer effect.
(Received March 11, 2015 )
1. INTRODUCTION
Studies over the last few years of so-called high-entropy alloys (HEA)
opened new opportunities to develop new structural and functional
materials. By definition, HEA contain five or more different principal
elements in equimolar or nearequimolar ratios. HEA may contain prin-
cipal elements with the concentration of each element being between 5
and 35 at.% [1, 2]. A characteristic feature of these alloys is that they
do not have the element as host.
Model conceptions of multicomponent solid solutions are applied for
HEA, which are characterized by large mixing entropy as a measure of
chaos and probability of single-phase state in a system minimizing a
free energy G H TS. Assuming the absence of interaction between
different elements, the change in the mixing entropy of n elements
n
i
ii ccRS
1
max ln reaches a maximum for equimolar concentrations
ci and is much larger than the enthalpy change H.
Contrary to theoretical assumption, it was found that HEA are crys-
tallized in a state with two or more phases and decomposed to both
dendrites and interdendrites [2—8]. It was shown in [3] that the system
AlCoCrCuFeNi with the each element 0.5 or 1.0 in molar ratio exhibits
simple f.c.c. and b.c.c. solid solution phases. Co, Cu, Ni elements en-
hance f.c.c. phase formation while Al and Cr enhance b.c.c. phase for-
mation in the alloy systems. Along with that, the b.c.c. phase tends to
form a nanospaced spinodal structure during cooling [2—4], and, in
some cases, it coexists with the amorphous phase [2]. Copper tends to
segregate in the interdendrite region and forms a Cu-reach f.c.c. phase
[3]. The considerably inhomogeneous distribution of Cu mainly on
boundaries of dendrites and other phases was reported in [5].
The lattice parameters of the f.c.c. and b.c.c. phases in the
HEA AlxCoCrCuFeNi (0 x 3) increased with the increasing Al con-
centration [2, 4]. It was stated in [6] that decomposition in dendritic
and interdendritic areas of equimolar HEA with the formation even six
phases with different nanoscale morphology, types of structure and
chemical composition occurs during the melt solidification, the follow-
ing homogenization and cooling. It was shown in [7] that cooling rate
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 989
of a melt during foundry (10—20 Ks1) or its spraying (106—107
Ks1)
have a dramatic impact on the structure and the phase composition of
AlCoCrCuFeNi HEA. The homogeneous submicrocrystalline grain
with b.c.c. structure was obtained just at high-rapid cooling (106
Ks1)
[8].
Thus, it was concluded in [9] that the modulated structure of the
equimolar AlCoCrFeNiCu HEA consists of NiAl intermetallics, a (-
Fe, Cr) solid solution, some Cu enriched phase precipitates and a doubt
as to the high-entropy idea to apply to multicomponent alloys was ex-
pressed.
At the same time, HEA have attracted much attention because they
possess unique properties. The b.c.c. phase significantly increases
hardness of the AlxCoCrCuFeNi HEA varied within the 208—458HV de-
pending on Al content [3]. A solution-hardening mechanism was as-
sumed in [2]. However, it was reported in [9] that a high-strength
phase in the HEA is a NiAl intermetallic phase. High mechanical prop-
erties, strain hardening capacity and abrasive wear of the
HEA AlxCoCrCuFeNi (0 x 3) were revealed in [10, 11].
Due to above-mentioned properties, HEA are advanced candidates as
high-strength engineering materials particularly for metallic wear-
resistant, corrosion-resistant and electroconductive coatings. In this
respect, the electrical and magnetic properties of HEA as well as their
thermal expansion has to be investigated in all aspects of details. It was
reported in [12] that as-cast, as-homogenized and as-deformed HEA
AlxCoCrFeNi exhibit high residual electrical resistivity 100—220
cm and low temperature coefficient of resistivity 82.5 ppmK1
in
the temperature range of 4.2—300 K.
The optimal composition of the FeCoNi(AlSi)x alloys (0 x 0.8)
providing a balanced features like the magnetic, electrical and me-
chanical properties was determined in [13]. Particularly, the high sat-
uration magnetization ( 1.15 T) and low coercivity (1.4 A/m) were ob-
tained, that allowed to recommend these alloys as soft-magnetic mate-
rials. Authors of [13] believe that the obtained features of HEA are
caused by both high contents of the ferromagnetic metals Fe/Co/Ni
and also higher atomic packing density (or atomic volume fraction) of
the f.c.c. structure. It was found in [9, 14, 15, 16] that as-cast equimo-
lar AlCoCrFeNiCu HEA displays typical ferromagnetic behaviour
(s 38—44 emu/g at 300 K) that on the assumption of authors is de-
termined by spinodal decomposition in Fe—Cr-rich regions [16] or ex-
istence of paramagnetic NiAl intermetallics and magnetic solid solu-
tion (-Fe, Cr) [9].
The data on the Curie temperature as a function of Al content in ho-
mogenized AlxCoCrFeNi (0 x 2) HEA were reported in [12]. The val-
ue of TC is relatively low and increases from 90 to 440C with the vary-
ing concentration within the range x 0.25—1.25. However, TC of this
990 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
alloy system at x 2 is uncertain quantity; particularly, it equals
375C in [12] and 157C in [14].
The data on thermal expansion coefficient (TEC) of HEA are ab-
sent in literature up to now, although such a feature is important for
constructions, in which HEA are joined with another materials, for
example, as coatings on metal surfaces. Thermal expansion of annealed
AlxCoCrFeNi (0 x 2) HEA was studied only at high temperatures
(423—1073 K [17]). For example, for HEA with x 1, two minima on
temperature dependence of were detected at 844.1 K and 920 K, the
first of which is attributed to the Curie temperature and the second one
is identified as -phase precipitation that has a NiCoCr structure. The
TEC decreased with the increasing aluminium content x. However, it
could be noted that the derived TEC of the HEA does not characterize
their thermal expansion nearby and below the room temperature at
which the diffusion processes are slowed down. In addition, the Curie
temperature obtained in [17] is inconsistent with the much lower val-
ues of TC 200—440 K reported in [12].
Thus, the aim of this work was to study the magnetic properties and
thermal expansion of the as-cast AlxFeCoNiCuCr HEA at the tempera-
tures below 650 K depending on deviation of Al content from equimo-
lar composition (x 1, 1.5, and 1.8). The distribution of the hyperfine
magnetic fields at iron nuclei in one of the HEA (x 1.5) was analysed
on the basis of the Mössbauer data.
2. MATERIAL AND METHODS
The AlxFeCoNiCuCr alloy ingots with the Al content of x 1, 1.5, and
1.8 were prepared by a vacuum ark melting of mixture of elements Al,
Fe, Co, Ni, Cu, Cr with the purities of better than 99.9 wt.%. The
chemical composition of the alloys was determined by X-ray fluores-
TABLE 1. Chemical composition of the AlxFeCoNiCuCr alloys.
Sample x
wt.%
Al Fe Co Ni Cu Cr
А1 1.0 8.8 18.1 18.3 18.9 19.7 16.0
А2 1.5 12.2 17.4 17.3 18.6 19.4 14.9
А3 1.8 14.9 16.8 17.1 17.7 18.7 14.7
at.%
А1 1.0 17.2 17.1 16.3 16.9 16.3 16.2
А2 1.5 23.0 15.9 14.9 16.1 15.5 14.6
А3 1.8 27.3 14.9 14.4 14.8 14.6 14.0
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 991
cence analysis (see Table 1).
The rectangular specimens of 10—15 mm in length were machined
for X-ray diffraction analysis and measurements of properties. Foils of
20—30 m in thick for Mössbauer measurements were performed by
mechanical polishing of plates and following etching in acid.
The structure and the phase composition of the alloys were studied
by means of X-ray diffraction analysis at room temperature using
‘DRON-3M’ diffractometer and CoK-radiation. Before measure-
ments, a layer of 0.2—0.25 m in thickness was etched from a sample
surface in order to eliminate a probable hardening after machining.
The field dependence magnetization of the HEA was measured by
means of ballistic magnetometer at 293 K in the magnetic field of 0—
800 kAm1, and using these curves the saturation magnetization was
estimated. The alternating current (AC) magnetic susceptibility was
measured in a temperature range of 80—650 K by means of induction
method based on the compensated transformer using weak magnetic
field of a 400 Am1
in magnitude and 1 kHz in frequency.
The dilatometric measurements were carried out in the induction
quartz dilatometer within the temperature range 135—530 K. The ini-
tial longitudinal sample size l 12—13 mm was measured with an accu-
racy of 0.005 mm. The calculations of TEC were performed using
software, which provides smoothing of the experimental curves and
the accuracy of 0.310
6
K
1.
The Mössbauer measurements were performed at room temperature
using a MS 1101E spectrometer. The -quantum source was the
57Co
isotope of 5 Ci in radioactivity. Velocity calibration and the isomer
shifts were estimated with respect to -Fe foil. The accuracy of the ve-
locity measurements was 0.016 mm/s in the range of 8 mm/s. The
Mössbauer spectrum was treated by Window method.
3. RESULTS AND DISCUSSION
3.1. X-Ray Diffraction Analysis
In order to certify samples and compare with the known data, the X-
ray diffraction analysis was carried out. The measurements revealed
the f.c.c. and b.c.c. phases in the cast AlxFeCoNiCuCr HEA (Fig. 1)
that is in accordance with the data reported previously in [1—4]. The
equimolar HEA A1 consists of b.c.c. and two f.c.c.1 and f.c.c.2 phases,
although the HEA A2 (x 1.5) and A3 (x 1.8) contain just b.c.c. and
one f.c.c.1 phases. The f.c.c.2 phase in the A2 and A3 HEA was not de-
tected. The lattice parameters of the phases in the equimolar HEA A1
are аb.c.c. 0.2871 nm, аf.c.c.1 0.3624 nm, and аf.c.c.2 0.3592 nm. The
parameters аb.c.c. and аf.c.c.1 increased with the increasing Al content in
the HEA A2 and A3 (see Table 2). For example, in the case of A3 sample,
992 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
the increment for аb.c.c. is 0.38% and for аf.c.c.1 it is 0.66%. This means
that Al was dissolved in both phases. The obtained results are con-
sistent with the concentration dependence of the lattice parameter of
the b.c.c. and f.c.c. phases in the AlxFeCoNiCuCr HEA reported in [2,
4].
a b
c
Fig. 1. The diffraction patterns of the AlxFeCoNiCuCr HEA: х 1 (А1) (a),
х 1.5 (А2) (b), х 1.8 (А3) (c).
TABLE 2. The lattice parameters of phases in the AlxFeCoNiCuCr HEA.
Sample x
а, nm
Cast state
After heating to 650 K during
measurements of (Т)
b.c.c. f.c.c.1 f.c.c.2 b.c.c. f.c.c.1 f.c.c.2
А1 1.0 0.2871 0.3624 0.3592 0.2871 0.3627 0.3600
А2 1.5 0.2877 0.3643 — 0.2880 0.3639 —
А3 1.8 0.2882 0.3648 — 0.2885 0.3643 —
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 993
3.2. Magnetic Properties
Two-phase state of the HEA is reflected in behaviour of the magnetic
properties. The Curie temperature of the HEA was estimated upon the
temperature dependence of the magnetic susceptibility (Fig. 2). Note
that the magnetic transition in all samples occurs in broadened tem-
perature range. For the equimolar alloy A1, the Curie temperature
TC1 352 K (Fig. 2, a). This is close to that obtained upon magnetiza-
tion curve for the as-cast HEA of similar composition [15] and lies be-
tween temperatures 200 K and 440 K obtained in [12] for the
HEA AlxCoCrFeNi with x 0.75 and 1.25, respectively. However, this
magnetic transition was not reported in work [14], where saturation
magnetization of as-cast equimolar HEA vs temperature was analysed.
The Curie temperature TC1 decreases with the deviation from
equimolar composition: TC1 282 K at the Al content x 1.8 (Fig. 2, c,
Fig. 3). This correlates with the reduction of the saturation magnetisa-
tion curve (Fig. 3). It is obvious since the crystal lattice constant of the
a b
c
Fig. 2. The temperature dependence of the magnetic susceptibility of the
HEA AlxFeCoNiCuCr: х 1 (А1) (a), х 1.5 (А2) (b), х 1.8 (А3) (c). The tem-
perature interval with the flattening of (T) is denoted by vertical dash lines.
994 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
alloy growths with the addition of Al content (Table 2) that results in
weakening exchange interaction.
The slope of the heating curve (T) for the equimolar HEA A1 above
400 K slightly decreases (Fig. 2, a). The complete flattening of the (T)
curve arises for the A2 alloy (x 1.5) within the temperature range of
350—550 K (Fig. 2, b). At the same time, the curve flattening for the
HEA A3 (x 1.8) starts at 300 K and this dependence (T) even slightly
increases at 400 K (Fig. 2, c). The flattening temperature interval is
gradually narrowed. At the following elevating temperature above 550
K and 400 K for the alloys A2 and A3, respectively, a further dramatic
reduction of the magnetic susceptibility occurs (Fig. 2, b, c).
Since changes in the (T) curves are observed at relatively low tem-
peratures, at which structural phase transformations do not occur [4,
14, 16], one can assume that at least two magnetic transitions in the
studied HEA are realized. The magnetic nature of the observed chang-
es against temperature is supported by almost reversible behaviour of
the cooling curves (Fig. 2). Although the Curie point TC1 of the alloys
was determined relatively simple, it was difficult to estimate the sec-
ond temperature TC2 using available (T) data. At the same time, two
magnetic transitions comply with the X-ray diffraction data regarding
two phase states (Fig. 1). In order to determine distinctly these mag-
netic transitions, the temperature dependence of the saturation mag-
netization s of the as-cast equimolar HEA (A1) was measured in mag-
netic field of 800 kAm1
(Fig. 4). Two magnetic transitions at
TC1 440 K and TC2 925 K were detected. In this experiment, the Cu-
rie temperature TC1 is higher than that derived from magnetic suscep-
Fig. 3. The Curie temperature and the saturation magnetisation of the HEA
AlxFeCoNiCuCr vs Al content.
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 995
tibility curve (Fig. 2) that results from the effect of relatively large
magnetic field.
Based on the investigations in details by TEM of the equimolar
AlFeCoNiCuCr HEA, it was shown [7, 9] that as-cast alloy is not uni-
formly distributed solid solution and comprised several b.c.c. and
f.c.c. phases, which differ from each other by both composition and
type of atomic ordering. It is unlikely that a plate-like Cu-rich (of B2
structure) and rhombohedron-shaped Cu-rich precipitates (of L12
structure, f.c.c.1 and f.c.c.2) in dendrite and interdendrite regions con-
taining small amounts of magnetics [7] could considerably contribute
to the magnetic behaviour of the HEA. Along with those, the Al—Ni-
rich plates of B2 structure and Cr—Fe-rich interplates of b.c.c. struc-
ture [7, 16] may show ferromagnetism and different Curie points.
As reported in [9], the NiAl intermetallic is weak magnetic phase in
HEA. Moreover, Ni—Al alloy shows ferromagnetism, and the concen-
tration of 25%Al provides the Curie temperature 343 K [18], which is
close to the obtained TC1 352 K for the as-cast equimolar HEA (Fig. 2).
Weak discrepancy between these values was expected because the ele-
ments Co, Fe, Cr are not uniformly distributed in the studied HEA, par-
ticularly, in the Al—Ni-rich regions [7, 16]. Due to that, the magnetic
transition nearby TC1 is rather broad and smeared (Fig. 2, a, Fig. 4).
Along with that, the second Curie temperature TC2 of the as-cast
HEA alloy most probably resulted from existence of Cr—Fe-rich re-
gions. In fact, as assumed in [9], the (-Fe, Cr) solid solution is magnet-
ic phase in as-cast HEA. In addition, it was reported in [16] that the
Fig. 4. The saturation magnetization of the as-cast equimolar AlxFeCoNiCuCr
HEA (A1 х 1) vs cooling temperature. Vertical dash lines denote the Curie
temperatures.
996 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
ferromagnetic behaviour of the HEA results from spinodal decomposi-
tion of Fe and Cr in Fe—Cr-rich regions on a scale of few nanometres.
This complies with the data [19] that two-phase microstructure (Fe-
rich 1- and Cr-rich 2-phases) on the nanometre scale formed during
spinodal decomposition determines magnetic properties of ternary Fe—
Co—Cr alloys.
A weak irreversibility of the cooling curves (T) as compared to the
heating ones is observed (Fig. 2). Since samples were heated to 650 K
during measurements that was lower than the miscibility gap of spi-
nodal decomposition (871—913 K) [4, 16] and the phase transformation
[14], this irreversibility results from diffusion processes and atomic
redistribution in a solid solution at heating influencing on interatomic
distance and, consequently, on exchange interaction. In fact, the lat-
tice constants а of the f.c.c.1 and f.c.c.2 phases in equimolar HEA
(x 1) increased after the magnetic susceptibility measurements by
approximately 0.1% and 0.2%, respectively, and the difference be-
tween them gradually decreases. The lattice constants of the phases in
the A2 (x 1.5) and A3 (x 1.8) alloys are also changed after the meas-
urements of the (T) dependence (see Table 2).
The saturation magnetization of the AlxFeCoNiCuCr HEA was taken
from the dependences of the magnetization at T 293 K against magnet-
ic field (Fig. 5). It is noteworthy that the considerably low saturation
magnetization s 41.3 emu/g of the as-cast equimolar HEA A1 (x 1) is
compared to pure metals (Fe, Ni, Co) [20]. Moreover, the s value de-
Fig. 5. Magnetization curves of the AlxFeCoNiCuCr HEA (x 1, 1.5, 1.8) at
room temperature. The extrapolated dashed lines denote saturation magneti-
zation s.
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 997
clines as Al content increases: s 34.3 emu/g for x 1.5 and s 22.4
emu/g for x 1.8 (Figs. 3, 5). The obtained result complies with the
change of the Curie temperatures (Fig. 3). Low s of as-cast HEA was
also reported in [9, 14—16] and its reduction in annealed at 1100C HEA
with the Al content in the range 1.25 x 2.0 was revealed in [12].
Cause of the reducing ferromagnetism of the HEA is the weakening of
the exchange interspin interaction due to increasing of the interatomic
distance (Table 2) and screening by diamagnetic Al and Cu.
Assuming the additive contribution of the magnetic moments of each
metals, Fe ( 2.2B), Ni ( 0.6B), Co ( 1.7B), in ferromagnetism
[20] and taking into account their total content <cFe,Ni,Co> 50%, an
average magnetic moment of the HEA <> 0.75B was expected.
However, taking into account the ratio <s> 100<exp> [20] and the
obtained data for s (Fig. 5), the experimental value is <exp> 0.2—
0.4B. The obtained <exp> complies with the low value of the most
probable hyperfine magnetic field H 13 T derived in Mössbauer exper-
iment for the Al1.5FeCoNiCuCr alloy (Fig. 6). Taking into account the
linear relationship between the hyperfine magnetic field and the mag-
netization, H[Oe] A<М> BB, and the magnitude of coefficient B
120 that denotes a field at iron nuclei induced by one Bohr magneton
[21], the coefficient А 13.2 was estimated. In this case, <M> s,
where is the mass density 7.035 g/cm3
for the Al1.5FeCoNiCuCr HEA.
Wide distribution of the hyperfine magnetic fields 0—40 T (Fig. 6, b)
points to existence of different atomic configurations in b.c.c. and
f.c.c. phases of the HEA including nearest surroundings of Fe atoms by
magnetic and nonmagnetic elements. In accordance with the Slater—
Pauling diagram [21], the most probable atomic bonds are varied from
the Fe—Co with the maximum <> and H to the Ni—Cu with the nearly
zero values of these quantities. This complies with the idea [16] that
a b
Fig. 6.
57Fe Mössbauer spectrum of the HEA AlxFeCoNiCuCr (х 1.5) (a) and
distribution of the hyperfine magnetic fields on Fe nuclei (b).
998 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
there are regions in HEA decompose into ferromagnetic Fe—Co-rich
and antiferromagnetic Cr-rich domains.
3.3. Thermal Expansion
The temperature dependences of thermal expansion coefficient (TEC)
a b
c
Fig. 7. The TEC of the AlxFeCoNiCuCr HEA: х 1 (А1) (a), х 1.5 (А2) (b),
х 1.8 (А3) (c).
TABLE 3. The thermal expansion coefficient of the AlxFeCoNiCuCr HEA.
Sample x
, K
1
200—500 K 135—545 K
min max <>
А1 1.0 11.410
6 14.810
6 12,310
6
А2 1.5 11.810
6 14.510
6 12,410
6
А3 1.8 11.510
6 14.510
6 12,410
6
EFFECT OF Al ON MAGNETIC PROPERTIES AND THERMAL EXPANSION OF HEA 999
of the investigated HEA in temperature range (135—545) K are pre-
sented in Fig. 7. The minimal and maximal values of TEC in the tem-
perature range 200—500 K and its average values within the range
135—545 K are summarized in Table 3. The close values of TEC for all
studied HEA indicate similar their thermal expansion behaviour in the
considered temperature range. This is not consistent with the data re-
ported in [17] that decreases with the increasing Al content. The dis-
agreement is explained by special thermal treatment of HEA before
measurements and higher temperatures range for measurements in
[17] as compared to those in our case.
It should be noted that the TEC of all investigated HEA at 300 K has
approximately the same value 12.010
6
K
1
that very differs from of
pure metals Al, Cu, Cr, but close to this value for Fe, Co, Ni and the al-
loys on their basis, in particular ferrite steels [22, 23]. This fact means
that the AlxFeCoNiCuCr HEA can be connected with steel items or de-
posited as coatings on their surfaces to increase hardening and wear
resistance.
4. CONCLUSION REMARKS
The broadened temperature range of the magnetic transition and wide
distribution of the hyperfine magnetic fields (0—40 T) on Fe nuclei was
found out that points to inhomogeneous magnetic order in the as-cast
equimolar AlxFeCoNiCuCr (x 1, 1.5, 1.8) HEA resulting from their
two-phase state and inhomogeneous atomic distribution in a solid solu-
tion containing Al—Ni-, Fe—Cr-, Fe—Co-, Ni—Cu-rich atomic configura-
tions.
The Curie temperature ТС 352 K and the saturation magnetization
41.3 emu/g of the as-cast equimolar HEA are much lower as compared
to those for pure metals and these quantities decreased to 282 K and
22.4 emu/g, respectively with the increasing Al concentration. The
estimated average magnetic moments of the as-cast AlxFeCoNiCuCr
HEA are 0.2—0.4B.
An average thermal expansion coefficient of the studied HEA for
the temperature range of 135—545 K is <> 12.410
6
K
1, and it is
principally independent on Al content for x 1, 1.5, 1.8. In a tempera-
ture range of 200—500 K, the value of is changed within the narrow
interval 11.4—14.810
6
K
1
that close to that for ferrite steels and
points to opportunity to apply the AlxFeCoNiCuCr HEA as a materials
for deposition of hardened and wear resistant coatings.
The authors expressed their gratitude to V. P. Zalutskii for X-ray
measurements and to T. V. Efimova for the measurements of field de-
pendence of the magnetization of HEA.
The work was done with the financial support of the competitive
project 22/15-N of the targeted comprehensive program of fundamen-
1000 V. M. NADUTOV, S. Yu. MAKARENKO, and Ye. O. SVYSTUNOV
tal research of the N. A. S. of Ukraine ‘Fundamental problems of creat-
ing new nanomaterials and nanotechnology’.
REFERENCES
1. S. Ranganathan, Curr. Sci., 85: 1404 (2003).
2. J. W. Yeh, S. K. Chen, S. J. Lin, J. Y. Gan, T. S. Chin, T. T. Shun, C. H. Tsau,
and S. Y. Chang, Adv. Eng. Mater., 6: 299 (2004).
3. Ch.-Ch. Tung, J.-W. Yeh, T.-Т. Shun, S.-K. Chen, Yu.-Sh. Huang, and
H.-Ch. Chen, Mater. Lett., 61, Iss. 1: 1 (2007).
4. C. J. Tong, Y. L. Chen, S. K. Chen, J. W. Yeh, T. T. Shun, C. H. Tsau, S. J. Lin,
and S. Y. Chang, Metall. Mater. Trans. A, 36: 881 (2005).
5. V. M. Nadutov, S. Yu. Makarenko, P. Yu. Volosevych, and V. P. Zalutskii,
Metallofiz. Noveishie Tekhnol., 36, No. 10: 1327 (2014).
6. M. V. Ivchenko, V. G. Pushyn, A. N. Uksusnikova, N. Wanderka, and
N. I. Kourov, Phys. Met. Metallogr., 114: 561 (2013).
7. S. Singh, N. Wanderka, B. S. Murty, U. Glatzel, and J. Banhart, Acta Mater.,
59: 182 (2011).
8. M. V. Ivchenko, V. G. Pushyn, and N. Wanderka, J. Tech. Phys., 84: 57 (2014).
9. Y. P. Wang, B. Sh. Li, and H. Zh. Fu, Advan. Eng. Mater., 11: 641 (2009).
10. C. J. Tong, Y. L. Chen, S. K. Chen, J. W. Yeh, T. T. Shun, C. H. Tsau, S. J. Lin,
and S. Y. Chang, Metall. Mater. Trans. A, 36: 1263 (2005).
11. J. M. Wu, S. J. Lin, J. W. Yeh, S. K. Chen, Y. S. Huang, and H. C. Chen, Wear,
261: 513 (2006).
12. Y. F. Kao, S. K. Chen, T. J. Chen, P. C. Chu, J. W. Yeh, and S. J. Lin, J. Alloys
Compd., 509: 1607 (2011).
13. Y. Zhang, T. T. Zuo, Y. Q. Cheng, and P. K. Liaw, Sci. Rep., 3: 1 (2013).
14. M. S. Lucas, L. Mauger, J. A. Munoz, Yuming Xiao, A. O. Sheets,
S. L. Semiatin, J. Horwath, and Z. Turgut, J. Appl. Phys., 109: 07E307 (2011).
15. K. B. Zhang, Z. Y. Fu, J. Y. Zhang, J. Shi, W. M. Wang, H. Wang, Y. C. Wang,
and Q. J. Zhang, J. Alloys Compd., 502: 295 (2010).
16. S. Singh, N. Wanderka, K. Kiefer, K. Siemensmeyer, and J. Banhart,
Ultramicroscopy, 111: 619 (2011).
17. H. P. Chou, Y. S. Chang, S. K. Chen, and J. W. Yeh, Mater. Sci. Eng., 163: 184
(2009).
18. А. Е. Vol, Structure and Properties of Binary Metal Systems (Moscow:
Gos. Izd. Fiz.-Mat. Liter.: 1959), vol. 1 (in Russian).
19. W. Martienssen and H. Warlimont, Springer Handbook of Condensed Matter
and Materials Data: Functional Materials (Berlin—Heidelberg: Springer-
Verlag: 2005), p. 795.
20. C. Kittel, Introduction to Solid State Physics (Moscow: Nauka: 1978) (Russian
translation).
21. G. Wertheim, Mössbauer Effect: Principles and Applications (Moscow: Mir:
1966) (Russian translation).
22. L. N. Larikov and Yu. F. Yurchenko, Structure and Properties of Metals and
Alloys (Kiev: Naukova Dumka: 1985) (in Russian).
23. S. I. Novikova, Thermal Expansion of Solids (Moscow: Nauka: 1974)
(in Russian).
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/ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing. Created PDF documents can be opened with Acrobat and Adobe Reader 5.0 and later.)
>>
/Namespace [
(Adobe)
(Common)
(1.0)
]
/OtherNamespaces [
<<
/AsReaderSpreads false
/CropImagesToFrames true
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(InDesign)
(4.0)
]
/OmitPlacedBitmaps false
/OmitPlacedEPS false
/OmitPlacedPDF false
/SimulateOverprint /Legacy
>>
<<
/AddBleedMarks false
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/AddPageInfo false
/AddRegMarks false
/ConvertColors /ConvertToCMYK
/DestinationProfileName ()
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/Downsample16BitImages true
/FlattenerPreset <<
/PresetSelector /MediumResolution
>>
/FormElements false
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/MultimediaHandling /UseObjectSettings
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/PreserveEditing true
/UntaggedCMYKHandling /LeaveUntagged
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/UseDocumentBleed false
>>
]
>> setdistillerparams
<<
/HWResolution [2400 2400]
/PageSize [612.000 792.000]
>> setpagedevice
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| id | nasplib_isofts_kiev_ua-123456789-112261 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1024-1809 |
| language | English |
| last_indexed | 2025-12-07T13:28:33Z |
| publishDate | 2015 |
| publisher | Інститут металофізики ім. Г.В. Курдюмова НАН України |
| record_format | dspace |
| spelling | Nadutov, V.M. Makarenko, S.Yu. Svystunov, Ye.O. 2017-01-18T20:39:28Z 2017-01-18T20:39:28Z 2015 Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr / V. M. Nadutov, S. Yu. Makarenko, Ye. O. Svystunov // Металлофизика и новейшие технологии. — 2015. — Т. 37, № 7. — С. 987-1000. — Бібліогр.: 23 назв. — англ. 1024-1809 PACS: 61.05.Qr, 61.66.Dk, 65.40.De, 65.40.gd, 75.30.Cr, 76.80.+y, 81.05.Bx https://nasplib.isofts.kiev.ua/handle/123456789/112261 The high-entropy alloys (HEA) AlxFeCoNiCuCr (x = 1.0, 1.5, 1.8) in cast state are investigated by means of X-ray diffraction, Mössbauer spectroscopy, magnetic and dilatometric methods. Two-phase state in the HEA and the increase of the crystal lattice parameter а of the f.c.c. and b.c.c. phases are detected. The decrease of the Curie temperature and the saturation magnetization upon deviation of Al content from equimolar composition are found out. Inhomogeneous magnetic order characterizes the studied HEA. For the studied HEA, the magnetic moment 0.2—0.4 μB and the average thermal expansion coefficient <α> = 12.4∙10⁻⁶ К⁻¹ in the temperature range of 135—545 K are determined. Рентґеновою дифракцією, Мессбауеровою спектроскопією, магнетним і дилатометричним методами досліджено структуру та властивості високоентропійних стопів (ВЕС) AlxFeCoNiCuCr (х = 1,0, 1,5, 1,8) у литому стані. Виявлено двофазний стан ВЕС і зростання параметра кристалічної ґратниці а ОЦК- і ГЦК-фаз. Встановлено зниження температури Кюрі і намагнетованости наситу при відхилі концентрації Al від еквіатомового складу. Вивчені ВЕС характеризуються неоднорідним магнетним ладом. Для інтервалу температур 135—545 К визначено магнетний момент 0,2—0,4 μB і середнє значення температурного коефіцієнта теплового розширення <α> = 12.4∙10⁻⁶ К⁻¹ досліджуваних ВЕС. Рентгеновской дифракцией, мёссбауэровской спектроскопией, магнитным и дилатометрическим методами исследованы структура и свойства высокоэнтропийных сплавов (ВЭС) AlxFeCoNiCuCr (х = 1,0, 1,5, 1,8) в литом состоянии. Выявлено двухфазное состояние ВЭС и рост параметра кристаллической решётки a ОЦК- и ГЦК-фаз. Обнаружено снижение температуры Кюри и намагниченности насыщения при отклонении содержания Al от эквиатомного состава. Изученные ВЭС характеризуются неоднородным магнитным порядком. Для интервала температур 135—545 К определён магнитный момент 0,2—0,4 μB и среднее значение температурного коэффициента теплового расширения <α> = 12,4∙10⁻⁶ К⁻¹ исследуемых ВЭС. The authors expressed their gratitude to V. P. Zalutskii for X-ray measurements and to T. V. Efimova for the measurements of field dependence of the magnetization of HEA. The work was done with the financial support of the competitive project 22/15-N of the targeted comprehensive program of fundamental research of the N. A. S. of Ukraine ‘Fundamental problems of creating new nanomaterials and nanotechnology’. en Інститут металофізики ім. Г.В. Курдюмова НАН України Металлофизика и новейшие технологии Электронные структура и свойства Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr Вплив вмісту Al на магнітні властивості та теплове розширення литих високоентропійних стопів AlxFeCoNiCuCr Влияние содержания Al на магнитные свойства и тепловое расширение литых высокоэнтропийных сплавов AlxFeCoNiCuCr Article published earlier |
| spellingShingle | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr Nadutov, V.M. Makarenko, S.Yu. Svystunov, Ye.O. Электронные структура и свойства |
| title | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr |
| title_alt | Вплив вмісту Al на магнітні властивості та теплове розширення литих високоентропійних стопів AlxFeCoNiCuCr Влияние содержания Al на магнитные свойства и тепловое расширение литых высокоэнтропийных сплавов AlxFeCoNiCuCr |
| title_full | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr |
| title_fullStr | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr |
| title_full_unstemmed | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr |
| title_short | Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr |
| title_sort | effect of al content on magnetic properties and thermal expansion of as-cast high-entropy alloys alxfeconicucr |
| topic | Электронные структура и свойства |
| topic_facet | Электронные структура и свойства |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/112261 |
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