Modification of coating-substrate systems under the action of compression plasma flow
The results of studying changes in physical and mechanical properties of coating-substrate systems subjected to the compression plasma flow are presented. The possibility for doping the substrate both with pre-deposited coating components and with plasma-forming substance during liquid-phase mixing...
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| Date: | 2005 |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2005
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| Cite this: | Modification of coating-substrate systems under the action of compression plasma flow / V.M. Astashynski, I.G. Gimro, A.M. Kuzmitski, E.A. Kostyukevich, A.V. Kovyazo, A.A. Mishchuk, V.V. Uglov, V.M. Anishchik, N.N. Cherenda, E.K. Stalmashonak // Вопросы атомной науки и техники. — 2005. — № 2. — С. 217-219. — Бібліогр.: 4 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859472435759284224 |
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| author | Astashynski, V.M. Gimro, I.G. Kuzmitski, A.M. Kostyukevich, E.A. Kovyazo, A.V. Mishchuk, A.A. Uglov, V.V. Anishchik, V.M. Cherenda, N.N. Stalmashonak, E.K. |
| author_facet | Astashynski, V.M. Gimro, I.G. Kuzmitski, A.M. Kostyukevich, E.A. Kovyazo, A.V. Mishchuk, A.A. Uglov, V.V. Anishchik, V.M. Cherenda, N.N. Stalmashonak, E.K. |
| citation_txt | Modification of coating-substrate systems under the action of compression plasma flow / V.M. Astashynski, I.G. Gimro, A.M. Kuzmitski, E.A. Kostyukevich, A.V. Kovyazo, A.A. Mishchuk, V.V. Uglov, V.M. Anishchik, N.N. Cherenda, E.K. Stalmashonak // Вопросы атомной науки и техники. — 2005. — № 2. — С. 217-219. — Бібліогр.: 4 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | The results of studying changes in physical and mechanical properties of coating-substrate systems subjected to the compression plasma flow are presented. The possibility for doping the substrate both with pre-deposited coating components and with plasma-forming substance during liquid-phase mixing and resolidification of near-surface layers melted by the compression plasma flow is shown.
Представлено результати досліджень зміни фізико-механічних властивостей систем покриття-підкладка при впливі на них компресійним плазмовим потоком. Продемонстровано можливість легування матеріалу підкладки як компонентом попередньо нанесеного покриття, так і робочою речовиною плазми, у процесі рідкофазного перемішування і перезатвердіння розплавлених під дією компресійного плазмового потоку приповерхніх шарів.
Представлены результаты исследований изменения физико-механических свойств систем покрытие- подложка при воздействии на них компрессионным плазменным потоком. Продемонстрирована возможность легирования материала подложки как компонентом предварительно нанесенного покрытия, так и рабочим веществом плазмы, в процессе жидкофазного перемешивания и перезатвердевания расплавленных под действием компрессионного плазменного потока приповерхностных слоев.
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| first_indexed | 2025-11-24T10:51:39Z |
| format | Article |
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MODIFICATION OF COATING-SUBSTRATE SYSTEMS UNDER THE
ACTION OF COMPRESSION PLASMA FLOW
V.M. Astashynski, I.G. Gimro, A.M. Kuzmitski, E.A. Kostyukevich, A.V. Kovyazo,
A.A. Mishchuk, V.V. Uglov*, V.M. Anishchik*, N.N. Cherenda*, E.K. Stalmashonak*
Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus,
Minsk, Belarus, e-mail: ast@imaph.bas-net.by;
*Belarusian State University, Minsk, Belarus
The results of studying changes in physical and mechanical properties of coating-substrate systems subjected to the
compression plasma flow are presented. The possibility for doping the substrate both with pre-deposited coating
components and with plasma-forming substance during liquid-phase mixing and resolidification of near-surface layers
melted by the compression plasma flow is shown.
PACS: 52.40.Hf
INTRODUCTION
The material modification by high-energy flows of
charged particles is the prospective tendency in the
modern solid-state physics. Of processing methods the
widest recognition received those using lasers, plasma
flows, and beams of charged particles such as ions and
electrons [1-4]. The material being treated first melts,
then rapidly cools and finally resolidifies from liquid
phase. High cooling rates of molten layers produce a
variety of novel metallurgical microstructures, as well as
stable and/or metastable, nanocrystal and amorphous
phases. Along with the usual modification, it is possible
to carry out the doping of working surfaces with various
components by means of treating the coating-substrate
system via the melting of the coating and the near-surface
layer of the substrate followed by fast diffusion of
components in the melt. The purposeful injection of
alloying elements into the surface layer of metals allows
to produce various structures and thus to select the
required physical and mechanical operating properties.
In the present work the results of investigations on
the structure and the mechanical properties of titanium-
on-steel and chromium-on-steel systems subjected to the
compression plasma flow (CPF) are presented.
EXPERIMENTAL
Cr (about 2.5 μm thick) and Ti (about 1.0 μm thick)
layers have been deposited on carbon steel St3 (0.2 С, 0.2
Si, 0.5 Mn, in wt.%) using the CAVD method (cathodic
arc vapor deposition) with the following operating
parameters: arc current of 100 A, bias voltage of –120 V,
deposition temperature and time of 450˚C and 10 min,
respectively. The specimens were subjected to CPF. The
experiments were performed in a ‘‘residual gas’’ mode in
which the vacuum chamber was filled with nitrogen up to
the preset pressure of 400 Pa. The plasma flow
parameters are as follows: pulse duration ~100 μs, plasma
velocity (5−6)⋅106 cm/s, electron concentration (4−7)⋅1017
cm-3, dynamic plasma pressure and temperature 1.5 MPa
and 2−3 eV, respectively. The incident flow energy
density is equal to 13 J/cm2 per pulse. The chosen mode
of thermal action, according to estimated calculations,
corresponds to the melting of both a film and a substrate.
The phase composition was investigated by X-Ray
diffraction (XRD), using the CuKα radiation. The surface
morphology and cross-sections were analysed with the
help of scanning electron microscopy (SEM), using a
LEO1455VP device equipped with EDX. The element
composition was determined by Auger-electron
spectroscopy (AES), using a PHI-660 device. The
microhardness was tested with a Vickers indentor under a
load ranging from 0.2 to 2 N. The tribological test was of
"pin-on-plane" type, dry sliding dynamic friction. The
friction coefficient was determined at the reciprocal
sliding and carried out at room temperature (22±1˚С) and
at the relative humidity 50±5%. The linear velocity was
4mm/s. The pin was made of a hard alloy BK8 (92% WC,
8% Co) with a hardness of 36.75 GPa. The load on the
pin was 1 N.
RESULTS AND DISCUSSION
During the CPF treatment of the coating-substrate
system the melting of the surface layer occurs and then,
upon completing the action of plasma pulse, its
resolidification takes place. A wave-like structure
observed on sample surfaces is due to the solidification of
the liquid metal. SEM-analysis shows that the surface of
samples subjected to processing, contains cellular
structure areas with a cell size up to 1 μm (Fig. 1) formed
at a stage of solidification of the overcooled liquid.
In the initial state low-carbon steel has a ferrite-
pearlite structure. Ferrite peaks are observed on the X-ray
diffraction pattern (Fig. 2). XRD does not reveal a
cementite component of pearlite due to high dispersion of
θ-Fe3C carbide.
As a result of the treatment of the titanium-on-steel
system the disappearance of titanium peaks and the
displacement of ferrite peaks towards the lowest angles
are observed in the XRD pattern (Fig. 2). So there is an
increase in the lattice parameter, which can be caused by
the replacement of iron atoms by titanium atoms having a
greater atomic radius, and this results in the formation of
solid Fe-Ti solution. Also the interaction of the nitrogen
plasma with system elements is established, in particular,
XRD shows the presence of titanium nitride diffraction
peak TiN (111) (Fig. 2). The visual proof of TiN
formation is the appearance of a characteristic golden
Problems of Atomic Science and Technology. Series: Plasma Physics (11). 2005. № 2. P. 217-219 217
color on the sample surface. Thus, the modified layer
analyzed by X-ray radiation contains high nitrogen
concentration sufficient to form titanium nitride. Titanium
penetrates into the iron lattice as an overdimensional
impurity during the cooling and resolidification of the
iron-titanium mixture.
а
b
Fig. 1. Surface morphology of treated Ti/steel (a) and
Cr/steel systems (b)
34 36 38 40 42 44 46 48 50 52
treated Cr/steel
treated Ti/steel
untreated carbon steel
γ-Fe(200)γ-Fe(111)
α-Fe(110)TiN (111)
2Θ, grad
Fig. 2. XRD patterns of treated samples
On the contrary, the XRD data (Fig. 2) reveal that the
treatment of the chromium-on-steel system with nitrogen
plasma results in the formation of doped austenite: γ΄-
Fe(Cr, N, C). It is worth noting the role of Cr as a
stabilizing element.
The analysis of the element concentration profiles
obtained by AES shows the mixing of the various
components of the systems, as well as the nitrogen
incorporation. For example, the nitrogen concentration in
the near-surface layer of mixed Cr/steel system exceeds
15 at.%.
SEM observations of cross-sections of treated
samples show that the surface layer (~15 μm in thickness)
is modified. What is more, titanium and chromium are
present throughout thickness of modified areas, falling
down at the modified layer–base material interface,
whereas the thickness of as-deposited titanium and
chromium coatings does not exceed 1.0 and 2.5 μm,
respectively.
As a result of the treatment, phase and structure
transformations occurred, giving rise to a change in
mechanical properties. The microhardness of samples is
given on Fig. 3. One can note a significant increase in
microhardness of samples subjected to CPF. Moreover,
the treated chromium/steel system exhibits the maximum
hardness value, exceeding by more than two times
hardness of carbon steel. The enhanced microhardness is
due to the creation of faulted structure and phase
composition changes: the presence of a γ΄- phase, solid
Fe-Ti solution and TiN in the modified layers, and to
possible formation of fine-dispersed nitrides.
0
1
2
3
4
5
treated
Cr/steel
treated
Ti/steel
untreated
Ti/steel
untreated
Cr/steel
untreated
steel
M
ic
ro
ha
rd
ne
ss
, G
P
a
Fig. 3. Microhardness of treated samples
0 1 2 3 4 5 6 7 8 9
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
treated Cr/steel
treated Ti/steel
untreated carbon steel
Fr
ic
tio
n
co
ef
fic
ie
nt
Sliding distance, m
Fig. 4. Friction coefficient versus sliding distance
218
Investigations of the friction coefficient dependence
on the sliding distance reveal an improvement in
tribological properties of treated samples (Fig. 4). The
tribological curves of treated samples feature significant
decrease in the friction coefficient as compared to the
initial stage of friction, i.e. wear-in stage of treated
samples continues a longer time in comparison with
untreated one. The presence of a developed surface on
treated samples and enhanced surface hardness both lead
to the decrease in the pin contact area under sliding and
consequently to the reduction of the friction coefficient.
CONCLUSION
The modification of carbon steel with pre-deposited
titanium and chromium coatings by nitrogen CPF leads to
the melting of the near-surface layer and the liquid-phase
mixing of the coating with the matrix substance; to the
creation of a cellular structure on the surface (cell size up
to 1 μm); to the production of deep (~ 15 μm) modified
layers alloyed by titanium and chromium. After the
treatment of the Ti/steel system phase composition is
represented by solid solution Fe-Ti and nitride TiN. The
presence of Cr in treated system serves as a stabilizing
factor for the formation of doped austenite. Phase and
structural changes result in an increase in microhardness
of treated systems (by 1,5 times) in comparison with the
hardness of the initial state of used carbon steel and in the
reduction of friction coefficient at the initial stage of
friction.
Thus, it is shown that compression plasma flows
allow producing highly alloyed surface layers with
improved mechanical properties.
REFERENCES
1. A.G. Grigor’yanz. Basis of laser material treatment.
Moscow: Machine-building, 1989, p. 304 (in
Russian)
2. J. Langner, J. Piekoszewski, Z. Werner, V.I.
Tereshin, V.V. Chebotarev, I. Garkusha, L. Walis, B.
Sartowska, W. Starosta, W. Szymczyk, M.
Kopcewicz, A. Grabias. Surface modification of
constructional steels by irradiation with intensity
pulsed nitrogen plasma beams // Surface and
Coatings Technology. 2000, v. 128-129, p. 105-111.
3. A.N. Valyaev, M.K. Kylyshkanov, A.D. Pogrebnjak,
A.A. Valyaev, S.V. Plotnikov. Modification of
mechanical and tribological properties of R6M5 steel
and Be by intense pulsed-ion and pulsed-electron
beams // Vacuum. 2000, v. 58, p. 53-59.
4. V.V. Uglov, V.M. Anishchik, V.V. Astashynski,
E.K.Stalmoshenok, D.P. Rusalsky, N.N. Cherenda,
I.N. Rumyanceva, V.V. Askerko, A.M. Kuz’mitski.
Structure-phase transformation of high speed steel by
various high intensity ion-plasma treatments //
Surface and Coatings Technology. 2004, v.180-181,
p.108-112.
МОДИФИКАЦИЯ СИСТЕМ ПОКРЫТИЕ-ПОДЛОЖКА ВОЗДЕЙСТВИЕМ
КОМПРЕССИОННОГО ПЛАЗМЕННОГО ПОТОКА
В.М. Асташинский, И.Г. Гимро, А.М. Кузьмицкий, Е.А. Костюкевич, А.В. Ковязо, А.А. Мищюк,
В.В. Углов, В.М. Анищик, Н.Н. Черенда, Е.К. Стальмошенок
Представлены результаты исследований изменения физико-механических свойств систем покрытие-
подложка при воздействии на них компрессионным плазменным потоком. Продемонстрирована возможность
легирования материала подложки как компонентом предварительно нанесенного покрытия, так и рабочим
веществом плазмы, в процессе жидкофазного перемешивания и перезатвердевания расплавленных под
действием компрессионного плазменного потока приповерхностных слоев.
МОДИФІКАЦІЯ СИСТЕМ ПОКРИТТЯ-ПІДКЛАДКА ВПЛИВОМ
КОМПРЕСІЙНОГО ПЛАЗМОВОГО ПОТОКУ
В.М. Асташинський, І.Г. Гімро, А.М. Кузьмицький, Є.А. Костюкевич, А.В. Ковязо, А.А. Мищюк,
В.В. Углов, В.М. Анищик, Н.Н. Черенда, Е.К. Стальмошенок
Представлено результати досліджень зміни фізико-механічних властивостей систем покриття-підкладка
при впливі на них компресійним плазмовим потоком. Продемонстровано можливість легування матеріалу
підкладки як компонентом попередньо нанесеного покриття, так і робочою речовиною плазми, у процесі
рідкофазного перемішування і перезатвердіння розплавлених під дією компресійного плазмового потоку
приповерхніх шарів.
219
|
| id | nasplib_isofts_kiev_ua-123456789-79781 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-11-24T10:51:39Z |
| publishDate | 2005 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Astashynski, V.M. Gimro, I.G. Kuzmitski, A.M. Kostyukevich, E.A. Kovyazo, A.V. Mishchuk, A.A. Uglov, V.V. Anishchik, V.M. Cherenda, N.N. Stalmashonak, E.K. 2015-04-04T18:40:41Z 2015-04-04T18:40:41Z 2005 Modification of coating-substrate systems under the action of compression plasma flow / V.M. Astashynski, I.G. Gimro, A.M. Kuzmitski, E.A. Kostyukevich, A.V. Kovyazo, A.A. Mishchuk, V.V. Uglov, V.M. Anishchik, N.N. Cherenda, E.K. Stalmashonak // Вопросы атомной науки и техники. — 2005. — № 2. — С. 217-219. — Бібліогр.: 4 назв. — англ. 1562-6016 PACS: 52.40.Hf https://nasplib.isofts.kiev.ua/handle/123456789/79781 The results of studying changes in physical and mechanical properties of coating-substrate systems subjected to the compression plasma flow are presented. The possibility for doping the substrate both with pre-deposited coating components and with plasma-forming substance during liquid-phase mixing and resolidification of near-surface layers melted by the compression plasma flow is shown. Представлено результати досліджень зміни фізико-механічних властивостей систем покриття-підкладка при впливі на них компресійним плазмовим потоком. Продемонстровано можливість легування матеріалу підкладки як компонентом попередньо нанесеного покриття, так і робочою речовиною плазми, у процесі рідкофазного перемішування і перезатвердіння розплавлених під дією компресійного плазмового потоку приповерхніх шарів. Представлены результаты исследований изменения физико-механических свойств систем покрытие- подложка при воздействии на них компрессионным плазменным потоком. Продемонстрирована возможность легирования материала подложки как компонентом предварительно нанесенного покрытия, так и рабочим веществом плазмы, в процессе жидкофазного перемешивания и перезатвердевания расплавленных под действием компрессионного плазменного потока приповерхностных слоев. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Low temperature plasma and plasma technologies Modification of coating-substrate systems under the action of compression plasma flow Модифікація систем покриття-підкладка впливом компресійного плазмового потоку Модификация систем покрытие-подложка воздействием компрессионного плазменного потока Article published earlier |
| spellingShingle | Modification of coating-substrate systems under the action of compression plasma flow Astashynski, V.M. Gimro, I.G. Kuzmitski, A.M. Kostyukevich, E.A. Kovyazo, A.V. Mishchuk, A.A. Uglov, V.V. Anishchik, V.M. Cherenda, N.N. Stalmashonak, E.K. Low temperature plasma and plasma technologies |
| title | Modification of coating-substrate systems under the action of compression plasma flow |
| title_alt | Модифікація систем покриття-підкладка впливом компресійного плазмового потоку Модификация систем покрытие-подложка воздействием компрессионного плазменного потока |
| title_full | Modification of coating-substrate systems under the action of compression plasma flow |
| title_fullStr | Modification of coating-substrate systems under the action of compression plasma flow |
| title_full_unstemmed | Modification of coating-substrate systems under the action of compression plasma flow |
| title_short | Modification of coating-substrate systems under the action of compression plasma flow |
| title_sort | modification of coating-substrate systems under the action of compression plasma flow |
| topic | Low temperature plasma and plasma technologies |
| topic_facet | Low temperature plasma and plasma technologies |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/79781 |
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