稀土铝锌镁合金超塑变形中位错密度的变化  

Change of Dislocation Density in Rare-Earthes Al-Zn-Mg Alloys During Superplastic Deformation

作　　者：吴岩[1] 赵友昌 滕凤恩[1] 

机构地区：[1]吉林大学材料科学研究所,长春130023

出　　处：《稀有金属材料与工程》1992年第4期38-41,共4页Rare Metal Materials and Engineering

基　　金：国家基金委资助项目

摘　　要：通过对加稀e土和未加稀土的Al-Zn-Mg合金的对比实验,研究了稀土元素(RE)对合金超塑性的影响,探讨了加稀土合金的动态再结晶行为,利用X光衍射线形分析方法测定了超塑变形中位错密度变化的规律。Through the contrast test of Al-Zn-Mg alloy with and without rare earth element addition, the effect of RE on superplasticity of Al-Zn-Mg alloys has been studied. The behaviour of dynamic recrystalization of the alloy with the addition has been investigated. The law of the change of dislocation density during superplastic deformation has been determined by X-ray line profile analysis.

关 键 词：超塑性 稀土 位错密度 铝锌镁合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程]