Effects of grain size on compressive behavior of NiTi polycrystalline superelastic macro- and micropillars
Effects of grain size on compressive behavior of NiTi polycrystalline superelastic macro- and micropillars
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晶粒尺寸对 NiTi 多晶超弹性宏观和微柱压缩行为的影响
DOI:
10.1016/j.matlet.2017.11.069
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发表时间:
2018-03
影响因子:
3
通讯作者:
Sun Qingping
中科院分区:
文献类型:
--
作者:
Kabirifar Parham;Chu Kangjie;Ren Fuzeng;Sun Qingping
Polycrystalline NiTi pillars of 0.5 μm diameter and 1.5 μm height with average grain sizes from 10 to 421 nm are fabricated by focused ion beam and compressed by nanoindentation. It is found that stress–strain hysteresis loop area, transformation stress and transformation strain vary non-monotonically with grain size. Analysis of the results reveals that increasing the grain size from 10 nm enhances the transformation by promoting the nucleation and growth of martensite domains. When the grain size approaches the pillar size, the transformation is suppressed by an increase in granular constraints and heterogeneity of internal stress–strain state among large grains.
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影响因子:
3
作者:
Xia Minglu;Liu Pan;Sun Qingping
通讯作者:
Sun Qingping
DOI:
10.1088/0965-0393/22/7/075002
发表时间:
2014-09
影响因子:
1.8
作者:
H. Paranjape;P. Anderson
通讯作者:
H. Paranjape;P. Anderson
影响因子:
6
作者:
H. Yin;Yongjun He;Z. Moumni;Q. Sun
通讯作者:
H. Yin;Yongjun He;Z. Moumni;Q. Sun
DOI:
10.4028/www.scientific.net/msf.509.87
发表时间:
2006-02
期刊:
Materials Science Forum
影响因子:
--
作者:
F. Sánchez;G. Pulos
通讯作者:
F. Sánchez;G. Pulos
影响因子:
5.3
作者:
T. Waitz;T. Antretter;F. Fischer;N. Simha;H. Karnthaler
通讯作者:
T. Waitz;T. Antretter;F. Fischer;N. Simha;H. Karnthaler