冷轧态Al-Li-Cu-Mg-Zr合金的超塑变形工艺  

SUPERPLASTIC DEFORMATION PROCESS OF COLD-ROLLED Al-Li-Cu-Mg-Zr ALLOY

作　　者：刘振刚[1] 黄晓旭[1] 李旭虹 刘庆[1] 姚枚[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《材料科学进展》1993年第6期485-490,共6页

基　　金：国家自然科学基金 59171035

摘　　要：研究了未经预处理的冷轧态 Al-Li 合金超塑变形工艺,根据三段拉伸设想,按正交试验设计方案,进行了超塑拉伸试验。结果表明:对于冷轧态 Al-Li 合金,采用三段拉伸工艺可以获得良好的超塑性,其延伸率达到550%以上,超过一段和两段拉伸。In this paper,a study on superplastic deformation process was conducted on anunpretreated cold-rolled Al-Li-Cu-Mg-Zr alloy based on the concept of three-stage tension.The experimental results of superplastic tensile test carried out according to orthonormal designshow that,for cold-rolled Al-Li alloy,better superplasticity can be obtained by usingthree-stage tension process.Its elongation can reach 550% which is higher than that forone-stage or two-stage tension process.

关 键 词：超塑性 铝锂合金 拉伸试验 

分 类 号：TG146.21[一般工业技术—材料科学与工程]