Magnetic and Invar properties of Fe-35 %Ni alloy after grinding of structure by hydroextrusion
The impact of deformation of Invar Fe-35 % Ni alloy by hydroextrusion at room temperature on structure and its properties was studied. Grinding of grains, the structure fragmentation on 60 nm blocks and continuous increasing microstresses with growing e within the strain range of ε = 0.45—3.47 was s...
Збережено в:
Дата: | 2012 |
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Автори: | , , , , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
НТК «Інститут монокристалів» НАН України
2012
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Назва видання: | Functional Materials |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/135311 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Magnetic and Invar properties of Fe-35 %Ni alloy after grinding of structure by hydroextrusion / V.M. Nadutov, D.L. Vashchuk, Ye.O. Svystunov, V.A. Beloshenko, V.Z. Spuskanyuk, A.A. Davidenko // Functional Materials. — 2012. — Т. 19, № 3. — С. 334-342. — Бібліогр.: 15 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | The impact of deformation of Invar Fe-35 % Ni alloy by hydroextrusion at room temperature on structure and its properties was studied. Grinding of grains, the structure fragmentation on 60 nm blocks and continuous increasing microstresses with growing e within the strain range of ε = 0.45—3.47 was shown. The multiple extrusion leads to a non-monotonic change of magnetic properties of the alloy (specific magnetization and the Curie temperature) and as a consequence to thermal expansion measured along the direction of the extrusion due to the microstresses growth and their partial relaxation. The hypothesis concerning the microstresses induced change of a balance between ferromagnetic and antiferromagnetic contributions to exchange interspin interaction is supposed. |
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