Phase transformations and aging of the Cu72.9Al15.0Mn10.5Ag1.6 alloy

被引：10

作者：

Santos, C. M. A. ^{[1
]}

Adorno, A. T. ^{[1
]}

Oda, N. Y. ^{[2
]}

Sales, B. O. ^{[2
]}

Silva, L. S. ^{[2
]}

Silva, R. A. G. ^{[2
]}

机构：

[1] UNESP, Inst Quim, Dept Fis Quim, Caixa Postal 355, BR-14801970 Araraquara, SP, Brazil

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 685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; AG;

D O I：

10.1016/j.jallcom.2016.05.303

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 phase transformations and aging of the Cu72.9Al15.0Mn10.5Ag1.6 alloy were studied in the temperature range from 523 to 723 K using measurement of change in microhardness with variation in quenching temperature and aging time, differential scanning calorimetry (DSC), X-ray diffractometry (XRD), magnetization measurements with temperature and applied field, optical microscopy (MO) and high-resolution transmission electron microscopy (HRTEM). The results indicated that the bainitic precipitation is dominant with increase in microhardness and the activation energy value obtained for this process is lower than that reported in the literature due to the occurrence of a diffusion process disturbed by the presence of Ag dissolved in the alloy. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：587 / 592

页数：6

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