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Magnetic and Invar properties of Fe-35 %Ni alloy after grinding of structure by hydroextrusion
Репозиторій DSpace/Manakin
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Magnetic and Invar properties of Fe-35 %Ni alloy after grinding of structure by hydroextrusion
Інші назви:
Магнітні та інварні властивості сплаву Fe-35 %Ni після подрібнення структури методом гідроекструзії
Тема:
Characterization and properties
Посилання:
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.
Дата:
2012
Переглядів:
800
Завантажень:
341
Анотація:
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.
