Microstructure dependent elastic modulus variation in NiTi shape memory alloy

被引：16
|
作者：
Suresh, K. S. [1 ]
Lahiri, Debrupa [2 ]
Agarwal, Arvind [2 ]
Suwas, Satyam [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India
[2] Florida Int Univ, Dept Mech & Mat Engn, Nanomech & Nanotribol Lab, Miami, FL 33174 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 633卷
关键词：
Intermetallics; Mechanical properties; Shape memory; Phase transitions; Microstructure; TITANIUM-NICKEL FILMS; EQUIATOMIC NITI; YOUNGS MODULUS; NANOINDENTATION; PSEUDOELASTICITY; INDENTATION; CONSTANTS;
D O I：
10.1016/j.jallcom.2015.01.301
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：
Modulus variation of NiTi shape memory alloy has been investigated at microstructural level through nano dynamical mechanical analysis and compared with bulk experimental measurements. The differences between the modulus values at the macro and micro level as well as within the micro level are discussed and the corresponding variations have been explained based on the crystal structure, orientation and misorientation. The experimental results confirm a higher modulus value for the martensite phase that is in agreement with the theoretical predictions. (C) 2015 Elsevier B. V. All rights reserved.
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页码：71 / 74
页数：4
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