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摘要：
A nanocrystalline Ni-49.8 at%Ti alloy with an average grain size of about 16 am was acquired by cold-drawing and low-temperature annealing. The stability of stress-induced martensite of the nanocrystalline NiTi alloy was investigated by a differential scanning calorimeter (DSC). The results show that stress-induced B19＇ martensite was preserved when the samples were subjected to 14% and 16% prestrain. The DSC measurements reveal that the prestrained samples experience two-stage B19＇ -＞ B2 transformation upon the first heating process and the transformation temperature increases with an increasing prestrain. (C) 2014 Elsevier B.V. All rights reserved.
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来源 ：
MATERIALS LETTERS
ISSN： 0167-577X
年份： 2014
卷： 131
页码： 233-235
3 . 0 0 0
JCR@2022
ESI学科： MATERIALS SCIENCE;
ESI高被引阀值：256
JCR分区：1
中科院分区：2
