On the temperature dependence of the superelastic strength and the prediction of the theoretical uniaxial transformation strain in Nitinol

被引：42

作者：

McKelvey, AL ^{[1
]}

Ritchie, RO ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Mat Sci & Mineral Engn, Berkeley, CA 94720 USA

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 2000年 / 80卷 / 08期

关键词：

D O I：

10.1080/01418610008219082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes an alternative method for applying the Clausius-Clapeyron equation in a study of the effect of temperature on the superelastic stress in the shape memory alloy Nitinol-a candidate material for many medical devices, including, ill particular, endovascular stents. This new analysis will provide some clarification on the controversy regarding estimation of the thermodynamic equilibrium temperature. The theoretical uniaxial transformation strain has been calculated by means of the Clausius-Clapeyron equation. The calculated value of strain, 5.0%, corresponded closely to the experimentally measured value of 4.7%.

引用

页码：1759 / 1768

页数：10

共 20 条

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