王雪威，李振亮，吴朗，张婧，金自力，任慧平

( 内蒙古科技大学材料与冶金学院，内蒙古包头014010)

关键词: 镁合金; 轧制; 织构; 力学性能

中图分类号: TG146. 22 文献标识码: A

摘要: 对喷射沉积Mg-9Al-3Zn-1Mn-6Ca-2Nd 镁合金在0． 1，0． 2，0． 3 三种变形程度下进行热轧，研究织构类型、织构强度对镁合金组织性能的影响．结果表明，热轧过程中( 0002) 基面滑移仍是该合金的主要塑性变形机制，而锥面( 1012) ，( 1011) ，( 1013) 孪生是次要因素; 喷射沉积镁合金在ε = 0． 3 时显微硬度达到最高( 98． 6 HV) ，强烈的( 0002) 基面织构与细小第二相粒子是导致其硬度增高的主要原因．

Study on microstructure and properties of spray-deposited magnesium alloys during hot rolling

WANG Xue-wei，LI Zhen-liang ，WU Lang，ZHANG Jing，JIN Zi-li ，REN Hui-ping

( Materials and Metallurgy School，Inner Mongolia University of Science and Technology，Baotou 014010，China)

Key words: magnesium alloy; hot-rolled; texture; mechanical behavior

Abstract: Spray depositions of Mg-9Al-3Zn-1Mn-6Ca-2Nd magnesium alloy were carried out by hot rolling under three deformation0.1，0.2，0.3， and the effect of the texture intensity and texture type on the properties and microstructure of the magnesium alloy were studied． The results show that in the process of hot rolling，( 0002) basal slip is still the main plastic deformation mechanism of the alloy，and ( 1012) ，( 1011) ，( 1013) twining modes are the secondary factors． The micro-hardness of the spray deposited magnesium alloy reaches the highest ( 98． 6 HV) when ε = 0． 3， and the strong ( 0002) basal texture and fine second-phase particles are the keys to the highest hardness．