摘要
本文利用TEM观察了经Sr变质后Al-Si合金中共晶硅的生长特征。结果表明:变质后共晶硅中孪晶密度较高,且常有两个以上的{111}孪晶同时存在,生长速度对孪晶密度与孪晶特征影响很大。文章也分析了产生上述现象的原因。
The growth characteristic of eutectic Si of Al-Li allcy has been investigated through TEM.It hasbeen shown that the density of eutectic Si is higher and that there is usually existed more than two {11l}twins.The growth rate has a great effect on the density and the characteristic of twins.The reason has al-so been analyzed in this paper.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1993年第5期13-15,共3页
Journal of Materials Engineering
关键词
孪晶
变质
铝硅合金
Al-Si alloy
Twin
Modification
