High temperature tensile properties of Mg-5Li-3Al-1.5Zn-2RE alloys

摘要：

　　In this paper,the high temperature tensile properties of the LAZ532-2RE alloy prepared by hot extruded processing after vacuum casting was investaged.The tensile properties of the extruded ()Z532-2RE alloy specimens were tested at different temperature with different strain rate.The()rostructures near the fractured surfaces were observed using microscope in order to investigate the dominant deformation mechanism.The activation energy was calculated to explain the high temperature deformation mechanism.The result indicated that the strength of LAZ532-2RE alloy was high at the temperature range from 398K to 423K.Meanwhile,the fracture elongation of the alloy reaches 121% at 523K under strain rate 1 × 10-3s-1.

关键词： Magnesium-lithium alloy Microstructure High temperature tensile Superplasticity

作者: T.Q.Li M.Gao S.H.Wang Z.Y.Cao

作者单位: College of Mechanical and Electrical Engineering,Jilin Institute of Chemical Technology,NO.45 Chengd China Petroleum JiLin Chemical Engineering & Construction Co.,LTD,NO.9 Shenzhen Street,Jilin,132021, Jilin MengXi Engineering Management Co.,LTD,NO.22-1 Zunyi Street,Jilin,132021,P.R China The Key Laboratory of Automobile Materials,Ministry of Education,Department of Materials Science and

会议类型: 国际会议

会议名称: 2012 International Applied Mechanics,Mechatronics Automation Symposium(2012应用力学,机电一体化自动化国际研讨会)(IAMMAS2012)

会议地点: 沈阳

会议语种:英文

页码: 189-193

在线出版日期: 2012-09-07（万方平台首次上网日期，不代表论文的发表时间）