EFFECT OF CERAMIC REINFORCEMENT ON THE AGING BEHAVIOR OF AN ALUMINUM-ALLOY

被引:36
作者
HADIANFARD, MJ
MAI, YW
HEALY, JC
机构
[1] Centre for Advanced Materials Technology, Department of Mechanical Engineering, University of Sydney, Sydney, 2006, New South Wales
关键词
D O I
10.1007/BF01159851
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of a 20 vol% alumina microsphere particulate on the age-hardening characteristics of a 6061 Al matrix composite was investigated - based on microhardness, electrical resistivity and X-ray mapping - and the composite is compared to the unreinforced 6061 Al alloy. It is shown that this ceramic reinforcement can affect the age-hardening behaviour of the matrix alloy by significantly accelerating the kinetics of precipitation. This acceleration is related to a decrease in nucleation time and to an increase in the precipitate-growth rate. The relative amounts of age-hardened precipitates are also observed to be affected by reinforcement addition.
引用
收藏
页码:3665 / 3669
页数:5
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