Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7983114 | Materials Science and Engineering: A | 2013 | 8 Pages |
Abstract
The effect of additions of 0.5-1 wt% Al on grain refinement, heat treatment and mechanical properties of Mg-10Gd-3Y (wt%) alloy has been investigated. The additions of 0.6-1 wt% Al showed a dramatic grain refinement effect, which is associated with the formation of the Al2(Gd0.5Y0.5) particles that act as nucleants for α-Mg grains. Compared to the Zr refined counterpart, the Al refined alloy needed to be solution treated at a higher temperature to dissolve the majority of the intermetallic particles. Subsequent ageing at low temperatures led to pronounced precipitation hardening and consequently a large improvement in strength. In the peak-aged condition, the strength of the Al refined alloy is comparable to that of the Zr refined counterpart.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Jichun Dai, Suming Zhu, Mark A. Easton, Mingxing Zhang, Dong Qiu, Guohua Wu, Wencai Liu, Wenjiang Ding,