期刊
INTERMETALLICS
卷 17, 期 7, 页码 481-490出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2008.12.009
关键词
Composites matrix intermetallics; miscellaneous; Rare-earth intermetallics; Phase identification; Casting; Mechanical testing
资金
- Australian Government's Co-operative Research Centres Scheme
Additions of La, Ce and Nd to commercially pure Mg were made up to similar to 5 wt.%. It was found that the intermetallic phases formed in the eutectic were Mg(12)La, Mg(12)Ce and Mg(3)Nd respectively. Predictions from the Scheil-Gulliver equation correlated reasonably well with the measured volume fractions. The yield strength increased and the elongation to fracture decreased with an increase in the amount of intermetallic phase present in each alloy. The rate of change in mechanical properties was also found to be dependent upon the type of intermetallic, With Mg(3)Nd being more influential than Mg(12)RE. The morphology of the eutectics was also characterised and compared with the predictions based on phase volume fraction. There were some variations from those predictions, which may be due to the high undercooling produced as a result of the fast cooling rates in high pressure die casting. (C) 2009 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据