Indentation behavior of pseudoelastic TiNi alloy

被引：123
|
作者：
Liu, R [1 ]
Li, DY
Xie, YS
Llewellyn, R
Hawthorne, HM
机构：
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada
[2] Natl Res Council, Western Lab, Intregrated Mfg Technol Inst, Vancouver, BC V6T 1W5, Canada
来源：
SCRIPTA MATERIALIA | 1999年 / 41卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
TiNi alloy; indentation; pseudoelasticity; hardness;
D O I：
10.1016/S1359-6462(99)00199-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The pseudoelasticity and the indentation behavior of Ti-51at%Ni alloy were investigated. Pseudoelasticity exists not only under tensile loading condition but also during indentation that involves compressive stress. The pseudoelastic behavior of TiNi alloy may be characterized by its large recovered deformation energy (Wrc), and the ratio of the recoverable deformation energy to the total deformation energy (η). The Wrc and η values of 304 steel are considerably lower than those of the as-received and heat-treated TiNi alloys. The heat-treated TiNi alloy with superior pseudoelasticity is harder than the as-received one with lesser pseudoelasticity.
引用
收藏
页码：691 / 696
页数：6
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