Comparison of Microstructure and Mechanical Properties between ZM21 and ZME210 with Different Hot Extrusion Ratios
The mechanical properties and microstructure of the as-extruded ZM21 magnesium alloy and its modified alloy ZME210 with addition of 0.35wt％ cerium were investigated with different extrusion ratios from 14 to 182 by using mechanical property test, microscopic structure quantitative analysis, SEM observation and energy spectrum analysis. The results showed that both ZM21 and ZME210 had an extrusion ratio limit for grain refining, and the grains were found to be finer with higher extrusion ratio when the ratio was not higher than the limit value. The extrusion ratio limit for the best effect for grain refining of ZME210 is lower than that of ZM21. It was found that the Ce can refine the grains effectively after hot extrusion with different extrusion ratios. The effects of Ce on the microstructure and mechanical properties were analyzed.
Magnesium Alloy Extrusion Microstructure Mechanical Properties Cerium
Jian PENG Chengmeng SONG Yazhong ZHAO Fusheng PAN
College of Materials Science and Engineering, Chongqing University, Chongqing, China. 400044 Nationa College of Materials Science and Engineering, Chongqing University, Chongqing, China. 400044
国际会议
重庆
英文
796-800
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）