МИКРОСТРУКТУРА И СВОЙСТВА СПЛАВОВ С ЭФФЕКТАМИ ПАМЯТИ ФОРМЫ НА ОСНОВЕ ИНТЕРМЕТАЛЛИДА NI-MN, ЛЕГИРОВАННЫХ TI, AL, GA И FE

科研成果: Article

摘要

In this work, systematic studies of thermoelastic martensitic transformations (TMTs) and atomic ordering, as well as magnetic phase transformations and properties of alloys of 4 quasi-binary systems based on Ni50Mn50- x Ti x ( x = 0…25), Ni50Mn50- y Al y ( y = 0…25), Ni50Mn50- z Ga z ( z = 0…25) and Ni50Mn50-αFeα (α = 0…25), Ni50-βMn50Feβ (β = 0…25) after heat treatment and deformation by high pressure torsion (HPT) were carried out. The methods of measurements of electrical resistance, microhardness, X-ray diffraction, transmission and scanning electron microscopy (TEM and SEM) were used. The temperatures of the TMTs, the phase composition and structure of the alloys, the structural types of thermoelastic martensite, the physical and mechanical properties, and the dependence on the chemical composition of all investigated alloys were established. The temperature-concentration regularities of the existence of these phases were determined. The critical temperatures of forward and reverse phase transitions in the alloys under study were measured by resistometry and magnetometry. It was found that doping with the third component (Ti, Al, Ga, or Fe) lowers the critical temperatures of the TMTs, shape memory effects (SMEs), and pseudoelasticity (PE) compared to the binary intermetallic NiMn. The phase diagrams were constructed. The purpose of this work is a comprehensive study of the crystal structure characteristics, phase transformations and properties of alloys based on the Ni-Mn system, binary and ternary quasi-binary doped Al, Ti, Ga, Fe, the construction of their phase diagrams.
投稿的翻译标题MICROSTRUCTURE and PROPERTIES of ALLOYS with SHAPE MEMORY EFFECTS BASED on NI-Mn INTERMETALLIDE DOPED with Ti, Al, Ga and Fe
源语言Russian
页(从-至)33-41
页数9
期刊Вестник Пермского национального исследовательского политехнического университета. Машиностроение, материаловедение
21
3
DOI
Published - 2019

GRNTI

  • 29.19.00

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指纹 探究 'МИКРОСТРУКТУРА И СВОЙСТВА СПЛАВОВ С ЭФФЕКТАМИ ПАМЯТИ ФОРМЫ НА ОСНОВЕ ИНТЕРМЕТАЛЛИДА NI-MN, ЛЕГИРОВАННЫХ TI, AL, GA И FE' 的科研主题。它们共同构成独一无二的指纹。

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