Study of the "All-Round-Effect" generated by aging in traction in a Ni rich TiNi shape memory alloy

被引：6
作者：
Amireche, R. [1 ]
Morin, M. [2 ,3 ]
Belkahla, S. [1 ]
机构：
[1] Univ Badji Mokhtar, Lab LEAM, Annaba 23000, Algeria
[2] Univ Lyon, CNRS, Lyon, France
[3] INSA, MATEIS UMR5510, F-69621 Villeurbanne, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 516卷
关键词：
Shape memory alloys; All Round Effect; TiNi; Ti3Ni4; MARTENSITIC-TRANSFORMATION; THIN-FILMS; STRESS;
D O I：
10.1016/j.jallcom.2011.11.154
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Following aging under stress, Ni-rich TiNi shape memory alloys are subject to a two-way shape memory effect known as the "All Round Memory Effect" (ARME). The latter causes a sample to return to its high temperature shape during heating after being spontaneously deformed on cooling during martensitic and R-phase transformations. This effect has been thoroughly studied for stresses in bending. In this work, we were able to generate ARME with tensile stresses, making it possible to make more quantitative measurements of the effect. Application of a static stress opposite spontaneous deformation during cooling also allowed quantifying the magnitude of internal stresses caused by Ti3Ni4 coherent precipitates during aging. (C) 2011 Elsevier B.V. All rights reserved.
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页码：5 / 8
页数：4
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