AZ31镁合金挤压轧制过程微观织构演变  

Texture evolution of AZ31 magnesium alloy during extrusion and rolling

作　　者：李秀莲[1,2] 王茂银[2] 辛仁龙[2] 黄光杰[2] 刘庆[2] 

机构地区：[1]青海大学镁技术工程研究所,青海西宁810016 [2]重庆大学材料科学与工程学院,重庆400044

出　　处：《材料热处理学报》2010年第5期61-64,共4页Transactions of Materials and Heat Treatment

基　　金：国家重点基础研究发展(973)计划(2007CB613703);科技部中法镁合金国际合作重点项目(2006DFA51160);青海大学2008年中青年科研基金(2008-QG-04)

摘　　要：利用光学显微分析和电子背散射衍射(Electron Back Scatter Diffraction,简称EBSD)技术,研究了AZ31镁合金在挤压开坯、轧制及退火过程中微观组织和织构的演变规律。结果表明:挤压后板材呈现出特殊的纤维织构,基面平行于挤压方向,在随后的轧制过程中纤维织构逐渐向基面织构转化,且随变形量的增加,基面织构逐渐增强,最终形成了强烈的基面板织构。A commercial AZ31 magnesium alloy sheet was extruded,rolled and annealed.The microstructure and texture of the alloy at different processing stages were investigated by optical microscope and electron back scatter diffraction（EBSD）.The results show that a fiber texture is formed after extrusion,the basal plane is parallel to extruding direction.The fiber texture changes to a basal texture during the subsequent rolling processes and the basal texture is gradually enhanced with increasing train of the rolled alloys.

关 键 词：AZ31镁合金 挤压轧制 EBSD 织构 

分 类 号：TG146.2[一般工业技术—材料科学与工程]