摘要
研究了在铝-锂-铜-镁-锆合金中添加微量稀土元素对其凝固组织的影响.试验结果表明,稀土元素可以细化晶粒,显著减小二次枝晶臂间距,抑制合金元素的微观偏析,改善有害杂质铁的分布.
The influence of trace rare-earth element added in an Al-Li-Cu-Mg-Zr alloy on the solidification structure has been studied. The rare-earth element, by refining grain of Al-Li alloy, contributes to a decrease in secondary dendrite arm spacing, thus restraines microsegregation of alloying element and improves distribution of harmful Fe element.
出处
《铸造》
CAS
CSCD
北大核心
1993年第9期19-23,共5页
Foundry
