In situ transmission electron microscopy study of martensite boundaries movement on cooling and heating of the NiTi shape memory alloy

被引：9

作者：

Sibirev, A. ^{[1
]}

Ubyivovk, E. ^{[1
]}

Belyaev, S. ^{[1
]}

Resnina, N. ^{[1
]}

机构：

[1] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

MATERIALS LETTERS | 2022年 / 319卷

基金：

俄罗斯科学基金会;

关键词：

Martensitic transformation; Martensite interfaces; Shape memory alloys; NiTi; TEM; TRANSFORMATION;

D O I：

10.1016/j.matlet.2022.132267

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The peculiarities of the movement of the martensite interfaces were studied during the forward transformation on cooling and the reverse transformation on heating of NiTi alloy in situ in transmission electron microscope. It was found that the sequence of the martensite shrinking on heating was not opposite to the sequence of the martensite formation on previous cooling. The sequence of the martensite formation on the second cooling was not the same as during the first cooling. The dislocations did not act as the obstacle for the martensite formation and did not help for the martensite nucleation and growth.

引用

页数：5

共 14 条

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