二元Al-Li合金时效相变的电阻法研究  

Electric Resistance Investigation of Phase Transformation Process of Binary Al-Li Alloy During Ageing

作　　者：胡兰青[1] 卫英慧[1] 

机构地区：[1]太原理工大学

出　　处：《材料科学与工艺》1998年第3期38-40,共3页Materials Science and Technology

基　　金：山西省青年基金

摘　　要：通过电阻法研究了二元Ａｌ－２．０Ｌｉ（质量百分比）合金在１００℃、１９０℃时效时的电阻率随时效时间的变化。研究结果表明，二元Ａｌ－Ｌｉ合金固溶体分解过程中首先发现了短程有序化，然后通过均匀有序化形成δ’相．最后形成δ相。Phase transformation process of Al-2.0Li(wt%) alloy was investigated by resistance measurement at 100℃ and 190℃. The results indicated that a short-range ordering process took place before the forming of the long-range ordering δ 'phase which was developed by a homogeneous ordering in the decomposition of Al-Li alloy, and δ phase was formed after δ 'phase.

关 键 词：电阻法 时效 相变 铝锂合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程]