Investigation of Microstructure and Deformation Behavior of a Mg-Gd-Y Alloy Processed by ECAP and Aging Treatment
The combined strengthening effect of grain refinement by equal channel angular pressing (ECAP) and aging on a wrought Mg-12Gd-3Y-0.5Zr (mass fraction, %) alloy was investigated.The resulting mechanical properties and microstructures were examined by uniaxial tensile test, optical microscope (OM) and transmission electronic microscope (TEM).It is found that ECAP for 4 passes at 673K followed by aging treatment at 523K for 16h is the optimum condition to strengthen the selected alloy Microstructure analysis reveals that precipitates appear at grain boundaries, accompanies by a few precipitates in grain interior after ECAP and aging treatment.By contrast of as-annealed sample, the strength and elongation were improved which revealed that grain boundaries and precipitation hardening were the main contributor to the high tensile strength of the experimental alloy.
Mg-Re alloy ECAP Aging Precipitate Mechanical properties
Ran Liu Ping Huang Jing-tao Wang Jin-qiang Liu
College of Material Science and Engineering, Beijing Universtiy of Technology, Beijing, 100124,China School of Material Science and Engineering, Nanjing University of Science and Technology,210094, Chi
国际会议
The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)
重庆
英文
171-177
2016-07-25（万方平台首次上网日期，不代表论文的发表时间）