工业态AZ31镁合金超塑压缩试验研究  

Study on Superplastic Compression of Commercial AZ31 Magnesium Alloy

作　　者：范钧[1] 林飞[2] 

机构地区：[1]宿迁学院计算机科学与技术系,江苏宿迁223800 [2]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《新技术新工艺》2007年第1期54-56,共3页New Technology & New Process

摘　　要：利用Gleeble3800热模拟试验机,初步对工业态AZ31镁合金的压缩超塑性进行了研究。研究表明,工业态AZ31镁合金在变形温度为400℃,应变速率范围为1.6×10-4～1×10-2s-1的条件下均表现出良好的压缩超塑性,其压缩真应变均超过1.83,应变速率敏感性指数达0.55。因此,对于不具有等轴晶粒的工业态AZ31镁合金,无需经过细晶化预处理,同样可以得到良好的压缩超塑性,其研究结果具有很大实用价值。By using the Gleeble-3800 thermal simulator,the preliminary research of compression superplasticity on the commercial AZ31 magnesium alloy was conducted in this paper.At 400℃ and strain rate ranging from 1.6×10-4 to 1×10-2s-1,the commercial AZ31 magnesium alloy showed its excellent compression superplasticity,the true strain values were all more than 1.83 and the strain rate sensitivity exponent m reached 0.55.Therefore,it is of practical value greatly that the commercial AZ31 magnesium alloy without any equiaxed crystal and grain refining pretreatment has shown excellent compression superplasticity.

关 键 词：镁合金 超塑性 压缩变形 

分 类 号：TG146.22[一般工业技术—材料科学与工程]