Retardation of grain growth in Mg-3Al-1Zn alloy processed by strip-casting method

被引：13
|
作者：
Kim, W. J. [1 ]
Lee, B. H. [1 ]
机构：
[1] Hongik Univ, Dept Mat Sci & Engn, Seoul 121791, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 482卷 / 1-2期
关键词：
Metals; Casting; Thermal analysis (metals and alloys strip-casting grain growth magnesium alloys superplasticity precipitates); KINETICS;
D O I：
10.1016/j.jallcom.2009.04.039
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：
Grain growth behaviors of the two AZ31 alloy sheets processed by slab- and strip-casting methods were examined and compared. Grain growth rate of the strip-casting processed AZ31 alloy was considerably lower than that of the slab-casting processed AZ31 alloy. The result could be ascribed to the presence of finer Al-Mn compound particles more uniformly and densely distributed in matrix of the strip-casting alloy. Low grain growth rate via effective Zener pinning of the Al-Mn particles notably improved tensile ductility of the AZ31 alloy at elevated temperatures. (c) 2009 Published by Elsevier B.V.
引用
收藏
页码：106 / 109
页数：4
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