Thermal Properties, Microstructure and Microhardness of Cu-Al-Co Shape Memory Alloy System

被引：15

作者：

Aydogdu, Yildirim ^{[1
]}

Kurum, Ferdi ^{[2
]}

Kok, Mediha ^{[2
]}

Yakinci, Zehra Deniz ^{[3
]}

Aydogdu, Ayse ^{[1
]}

机构：

[1] Gazi Univ, Fac Sci, Dept Phys, Superconduct & Thermal Anal Lab, Ankara, Turkey

[2] Firat Univ, Dept Phys, Fac Sci, TR-23169 Elazig, Turkey

[3] Inonu Univ, Vocat Sch Hlth Serv, Malatya, Turkey

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2014年 / 67卷 / 04期

关键词：

Shape memory alloys; Precipitate; Martensite; Vickers hardness; TRANSFORMATION; BEHAVIOR; PSEUDOELASTICITY; EVOLUTION; PHASE; AG;

D O I：

10.1007/s12666-013-0376-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this study, the effects of Co content on the crystal structure, transformation temperatures and microstructure of Cu-Al-Co shape memory alloy system were investigated. It was found that Cu-Al-Co alloy system has also 18R type martensitic structure, which is commonly observed in copper-based systems. The transformation temperatures were found to be higher than 250 A degrees C and they do not show a linear increase or decrease with Co content. The microstructural examination revealed the presence of martensite phase and precipitates. It was realized that the size of precipitate increases with increasing Co content. It can be stated that the hardness increased with increasing Co content. All these results point out that increasing Co content increases the strength of Cu-Al-Co shape memory alloy system.

引用

页码：595 / 600

页数：6

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