Martensite decomposition in Cu-Al-Mn-Ag alloys

被引：2

作者：

Andrade dos Santos, Camila Maria ^{[1
]}

Adorno, Antonio Tallarico ^{[1
]}

Galdino da Silva, Ricardo Alexandre ^{[2
]}

Carvalho, Thaisa Mary ^{[1
]}

机构：

[1] UNESP, Inst Quim, Dept Quim Fis, BR-14801970 Araraquara, SP, Brazil

[2] UNIFESP, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 615卷

基金：

巴西圣保罗研究基金会;

关键词：

Metals and alloys; Solid state reactions; Kinetics; SHAPE-MEMORY ALLOYS; PHASE-STABILITY; KINETICS;

D O I：

10.1016/j.jallcom.2013.11.135

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：

The influence of Mn and Ag additions on the isothermal kinetics of martensite decomposition in the Cu-9wt.%Al alloy was studied using X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDXS) and microhardness changes measurements with temperature and time. The results indicated that the reaction is disturbed by the increase of Mn, an effect associated with the increase in the Al-Mn and Cu-Mn atomic pairs, which disturbs Cu diffusion and increases the activation energy for the martensite decomposition reaction. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S156 / S159

页数：4

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