Effect of Antimony and Yttrium Addition on the High Temperature Properties of AZ91 Magnesium Alloy

被引：19

作者：

Boby, Arun ^{[1
]}

Ravikumar, K. K. ^{[1
]}

Pillai, U. T. S. ^{[1
]}

Pai, B. C. ^{[1
]}

机构：

[1] CSIR, NIIST, Mat & Minerals Div, Thiruvananthapuram 695019, Kerala, India

来源：

6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION | 2013年 / 55卷

关键词：

AZ91 magnesium alloy; antimony; yttrium; beta-Mg17Al12;

D O I：

10.1016/j.proeng.2013.03.226

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of individual and combined additions of Y and Sb on the microstructure and mechanical properties of AZ91 alloy has been studied. The results indicate that the additions introduce new Al2Y and Mg3Sb2 phase along with the Mg17Al12 -beta phase besides, refining the grains significantly. It can be seen that the beta phase in Y added AZ91 + Sb alloy becomes much finer and distributed more uniformly than that of any other alloys. Minimum grain size 140 mu m is observed in AZ91alloy with 0.6 yttrium and 0.5 antimony additions. Moreover, improved room- and high-temperature mechanical properties are obtained in Sb added AZ91 + xY alloys. The maximum tensile properties are obtained with the alloy having the combined additions of 0.6 yttrium and 0.5 antimony. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：98 / 102

页数：5