材料科学与工程学报2017，Vol.35Issue(2)：190-194,5.DOI:10.14136/j.cnki.issn 1673-2812.2017.02.005
热处理对双相Mg-8Li-4Al-3Zn-La合金组织与性能的影响
Effects of Thermal Treatment on the Microstructures and Mechanical Properties of Mg-8Li-4Al-3Zn-La Alloy
摘要
Abstract
The dual-phase alloy Mg-8Li-4Al-3Zn-La was subject to homogenization and aging treatments.The microstructures and phase were characterized by optical microscope,scanning electron microscope (SEM) and X-ray diffraction (XRD).The hardness and tensile properties as well as fracture characteristics of the alloys were also measured and analyzed.The results show that the tensile strength is increased from 194 MPa to 243 MPa after solid solution treatment,and the elongation to failure decreases from 18％ to 9％.After aging,the tensile strength changes slightly,but the elongation to failure decreases greatly.Moreover,the mechanical properties of individual phase have distinct differences due to the different distribution of second phases in the alloy.关键词
热处理/双相镁锂合金/微观组织/抗拉强度Key words
heat-treatment/dual-phase Mg-Li alloy/microstructure/tensile strength分类
矿业与冶金引用本文复制引用
吴洪超,唐玲玲,赵永好..热处理对双相Mg-8Li-4Al-3Zn-La合金组织与性能的影响[J].材料科学与工程学报,2017,35(2):190-194,5.基金项目
国家重大基础科学研究资助项目(2012CB932203),杰出青年科学基金资助项目(51225102) （2012CB932203）
