Shape memory effect in nanocrystalline NiTi alloy processed by high-pressure torsion

被引：47
作者：
Shahmir, Hamed [1 ]
Nili-Ahmadabadi, Mahmoud [1 ]
Huang, Yi [2 ]
Jung, Jai Myun [3 ]
Kim, Hyoung Seop [3 ]
Langdon, Terence G. [2 ,4 ,5 ]
机构：
[1] Univ Tehran, Coll Engn, Sch Met & Mat, Tehran, Iran
[2] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton SO17 1BJ, Hants, England
[3] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang, South Korea
[4] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[5] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 626卷
基金：
欧洲研究理事会;
关键词：
Crystallization; Nanostructured materials; NiTi alloy; Severe plastic deformation; Shape memory effect; FINITE-ELEMENT-ANALYSIS; DEFORMATION TEMPERATURE; PLASTIC-DEFORMATION; BEHAVIOR; MICROSTRUCTURE; AMORPHIZATION; EXAMINE;
D O I：
10.1016/j.msea.2014.12.056
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A NiTi alloy was processed by high-pressure torsion for 10 turns followed by post-deformation annealing at 673 K for various times. An anneal for 60 min gave a nanocrystalline microstructure with a superior shape memory effect and an improvement of more than 40% over the initial state. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码：203 / 206
页数：4
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