STUDY OF THE HYSTERESIS CYCLE IN CU-ZN-AL SHAPE-MEMORY ALLOYS BY HIGH-RESOLUTION THERMAL-ANALYSIS

被引：6

作者：

AMENGUAL, A ^{[1
]}

TORRA, V ^{[1
]}

机构：

[1] UNIV POLITECN CATALUNA,ETSECCIP,DEPT FIS APLICADA,E-08034 BARCELONA,SPAIN

来源：

THERMOCHIMICA ACTA | 1992年 / 198卷 / 02期

关键词：

D O I：

10.1016/0040-6031(92)85093-B

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A high resolution thermal analysis is used to study the martensitic transformation in Cu-Zn-Al shape memory alloys. The characteristics of the single-interface single-variant transformation induced either by temperature or by stress are analyzed and calorimetric measurements on this type of transformation are reported. Thermoelasticity, stabilization of martensite and recovery of the beta-phase, pinning points and coalescence of plates of the same variant appear as phenomena which prevent the reproducibility of the transformation path. The evolution of the spontaneous global transformation with cycling is measured calorimetrically and the effect of ageing at 373 K is estimated.

引用

页码：381 / 394

页数：14

共 12 条

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