摘要
研究了添加微量Sc ,Zr的Al Mg合金的再结晶行为 ,结果表明 :Al Mg Sc Zr合金的再结晶起始温度为 40 0℃ ,细小、弥散、与基体共格的析出相对位错和亚晶的钉扎作用是合金再结晶温度大幅度提高的主要原因 ,再结晶形核机制为亚晶聚合机制。关键词 :钪 ;锆 ;铝合金 ;
The recrystalization behavior of Al-Mg alloys with Se and Zr additives was studied. It is found that the recrystallization of the alloy began at 400degreesC. The main reason of the great increase of recrystallization temperature is attributed to that the dislocations and subgrain boundaries. The recrystallizing nucleation mechanism was the subgrain boundary merging mechanism in the alloy are pinned by ultrafine dispersed coherent precipitates.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期167-170,共4页
Rare Metal Materials and Engineering
基金
ProjectsupportedbytheNationalKeyFundametalResearchDevelopmentProgram (19990 64 911)
关键词
钪
锆
铝合金
再结晶
Sc
Zr
Al alloys
recrystallization
