Compressive response of a single crystalline CoNiAl shape memory alloy

被引：67

作者：

Karaca, HE

Karaman, I ^{[1
]}

Chumlyakov, YI

Lagoudas, DC

Zhang, X

机构：

[1] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

[2] Siberian Phys Tech Inst, Tomsk 634050, Russia

[3] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA

[4] Nitinol COE, Edwards LifeSci, Irvine, CA 92614 USA

来源：

SCRIPTA MATERIALIA | 2004年 / 51卷 / 03期

基金：

美国国家科学基金会;

关键词：

shape memory alloys; CoNiAl; martensitic phase transformation; pseudoelasticity;

D O I：

10.1016/j.scriptamat.2004.04.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of crystallographic orientation and temperature on pseudoelasticity and recoverable strain levels under constant stress are revealed for the Co-31at.%Ni-27at.%Al alloy single crystals under compression. The single crystals demonstrate a perfect pseudoelasticity at temperatures as high as 170 degreesC, recoverable transformation strains of 4% along the [100] orientation and 2.5% along the [123] orientation, small stress hysteresis (<40 MPa) and high strength level against dislocation formation. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：261 / 266

页数：6

共 30 条

[1] FINE PHASE MIXTURES AS MINIMIZERS OF ENERGY [J].