Anelastic Phenomena in Mg-Al Alloys

被引:12
|
作者
Nagarajan, D. [1 ]
Caceres, C. H. [1 ]
Griffiths, J. R. [2 ]
机构
[1] Univ Queensland, Sch Engn, ARC Ctr Excellence Design Light Met, Brisbane, Qld 4072, Australia
[2] CSIRO Proc Sci & Engn, Kenmore, Qld 4069, Australia
关键词
BEHAVIOR;
D O I
10.12693/APhysPolA.122.501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Cyclic loading-unloading in tension and compression has been used to quantify the anelastic behaviour, in the form of hysteresis loops, of pure Mg and three Mg-Al alloys (0.5, 2, and 9 at.% Al). The effect reached a maximum at a plastic strain of approximate to 0.02 for all of the materials, and decreased at higher strains. The amount of anelasticity at any given strain was smaller for the dilute alloys in comparison with the pure Mg whereas it increased above that of pure Mg for the most concentrated alloy. Possible reasons for this behaviour are discussed in terms of reversible twinning, solid solution softening, and hardening and short range order.
引用
收藏
页码:501 / 504
页数:4
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