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MICROSTRUCTURE AND MARTENSITIC TRANSFORMATION OF Ni_{50}Ti_{50-x}Er_{x} SHAPE MEMORY ALLOYS
Author(s) -
Dovchinvanchig Maashaa,
Ya. Gangantogos,
B. Munkhjargal
Publication year - 2021
Publication title -
èrdèm šinžilgèènij bičig hèrèglèènij šinžlèh uhaan, inženerčlèl
Language(s) - English
Resource type - Journals
ISSN - 2617-7145
DOI - 10.22353/mjeas.v3i1.37
Subject(s) - shape memory alloy , microstructure , materials science , diffusionless transformation , nickel titanium , metallurgy , ternary operation , alloy , martensite , transformation (genetics) , phase (matter) , chemistry , biochemistry , organic chemistry , computer science , gene , programming language
The effect of rare earth element Er addition on the microstructure and phase transformation behavior of Ni_{50}Ti_{50-x}Er_{x} (x =0, 1, 5) shape memory alloy was investigated experimentally. The results showed that the microstructure of Ni-Ti-Er ternary alloys consists of the NiEr precipitate and the NiTi matrix. A one-step martensitic transformation was observed in all alloys. The martensitic transformation temperature M_s increased gradually with increasing Er content.

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