Microstructure,texture and mechanical properties of hot-rolled Mg-4Al-2Sn-0.5Y-0.4Nd alloy  

作　　者：Jing Wang Xinjian Zhang Xi Lu Yuansheng Yang Zhenhong Wang 

机构地区：[1]China Academy of Engineering Physics,Mian yang 621900,China [2]Institute of Metal Research,Chinese Academy of Science,Shen yang 110016,China

出　　处：《Journal of Magnesium and Alloys》2016年第3期207-213,共7页镁合金学报（英文）

基　　金：Key Technology R&D Program(Project No.2011BAE22B01-1);the International Science&Technology Cooperation Program of China(Project No.2011DFA50903).

摘　　要：A new Mg–Al–Sn–RE alloy with high ductility at room temperature has been developed.Homogenized Mg–4Al–2Sn–0.5Y–0.4Nd plates 25 mm in thickness were hot-rolled to 1 mm at 673K.The microstructures were characterized as fully recrystallized grains with a lot of fragmented fine particles along the rolling direction.The sheet specimen possesses basal texture of(0002)with the basal pole tilting by about 15°from the normal direction toward the rolling direction.Meanwhile,the texture strength was weakened,which is resulted from the non-basal<c+a>slip and recrystallization texture.For the as-rolled alloy,the yield strength and tensile strength in transverse direction are both higher than those of rolling direction.The average Lankford value is 1.83,which is lower than conventional AZ31 rolled magnesium alloy sheets.The relatively high elongation and low planar anisotropy implies good formability at room temperature.

关 键 词：Magnesium alloys Thermomechanical processing RECRYSTALLIZATION X-ray diffraction Mechanical characterization 

分 类 号：TG1[金属学及工艺—金属学]