Pseudoelasticity at elevated temperatures in [001] oriented CO49Ni21Ga30 single crystals under compression

被引：79
作者：
Dadda, Jayaram
Maier, H. J.
Karaman, I.
Karaca, H. E.
Chumlyakov, Y. I.
机构：
[1] Univ Paderborn, Lehrstuhl Werkstoffkunde, D-33098 Paderborn, Germany
[2] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA
[3] Siberian Phys Tech Inst, Tomsk 634050, Russia
来源：
SCRIPTA MATERIALIA | 2006年 / 55卷 / 08期
基金：
美国国家科学基金会;
关键词：
CoNiGa; pseudoelasticity; shape memory alloy; stress induced martensite; microstructure;
D O I：
10.1016/j.scriptamat.2006.07.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pseudoelasticity as a function of temperature of as-grown Co49Ni21 Ga-30 [001] oriented single crystals was studied under compression. These alloys demonstrate a large pseudoelastic temperature range, greater than 385 degrees C, with a maximum recoverable pseudoelastic strain of about 4%. We prov vertical bar%le[OK]ide an insight into the evolution of stress-strain behavior and corresponding stress-hysteresis with test temperatures, and the ramifications on the potential use of CoNiGa alloys as high temperature pseudoelastic alloys are presented. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：663 / 666
页数：4
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