Isothermal coarsening of fine and spherical particles in semisolid slurry of Mg-9Al-1Zn alloy under low shear

被引：31
|
作者：
Ji, S. [1 ]
Roberts, K. [1 ]
Fan, Z. [1 ]
机构：
[1] Brunel Univ, BCAST, Uxbridge UB8 3PH, Middx, England
来源：
SCRIPTA MATERIALIA | 2006年 / 55卷 / 11期
基金：
英国工程与自然科学研究理事会;
关键词：
coarsening; stability; microstructure; semisolid; magnesium;
D O I：
10.1016/j.scriptamat.2006.08.041
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The semisolid slurry of Mg-9Al-lZn (AZ91D) alloy produced by high shear can be morphologically stabilised under isothermal exposure to low shear. The fine and spherical solid particles in the semisolid slurry undergo a coarsening process under low shear in which the particle density decreases while the solid fraction, particle shape and agglomeration level remain constant. Both coarsening rate constant and exponent obtained from experiments show good agreement with the result calculated from the classical LSW theory. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：971 / 974
页数：4
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