电脉冲对Al-Cu合金GP Ⅰ 区影响的价电子结构分析  

Analysis of Influence of Electric Pulse Inoculation Treatment on GP Ⅰ Zone of Al-Cu Alloy by Valence Electron Structure Parameters

作　　者：林成[1] 曹丽云[1] 曹力生 

机构地区：[1]辽宁工业大学材料科学与工程学院 [2]锦州高等师范专科学校

出　　处：《特种铸造及有色合金》2013年第1期5-9,共5页Special Casting & Nonferrous Alloys

基　　金：辽宁省教育厅重点实验室资助项目(2008S118);辽宁省教育厅一般资助项目(L2011099)

摘　　要：基于"固体与分子经验电子理论"(EET),构建了Al-Cu熔体施加脉冲电场与未施加脉冲电场的GP Ⅰ区形成模型,计算了Al-Cu合金熔体及过饱和固溶体的价电子结构参数统计值,在电子结构层次上解释了脉冲电场作用Al-Cu合金熔体后对GP Ⅰ区形成的影响。Because the application of electric pulse inoculation treatment can greatly improve the formation of GP I zone of A1-Cu alloy and thus result in the marked improvement in properties of alloy, it is nec- essary to investigate influence of electric pulse inoculation treatment on GP I zone of A1-Cu alloy. Based on the empirical electron theory of solids and molecules （EET）, the formation models of GP I zones were built for the A1-Cu alloys which were subjected and not subjected to electric pulse inoculation treatment, and the statistical values of valence electron structure parameters for melts and supersaturated solid solution of A1-Cu alloy were calculated. As a result, the influence of electric pulse inoculation treatment on GP I zone of A1-Cu alloy was described at the electron structure level, providing the theory basis for the extensive use of electric pulse inoculation treatment into the aging treatment of A1-Cu.

关 键 词：AL-CU合金 GP Ⅰ 区 电子结构参数统计值 EET理论 电脉冲孕育处理 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG159.96[金属学及工艺—金属材料]