Microstructure and Mechanical Properties of Mg-3Y Binary Alloy Processed by Cyclic Extrusion and Compression

摘要：

Mg-3wt.%Y alloys were processed by cyclic extrusion and compression (CEC) up to 7 passes at different temperatures from 375 to 450 ℃, respectively. The microstructure was effectively refined and the mean grain size was decreased from 800 urn to 3-15 um. Tensile and compressive tests were performed at room temperature at an initial strain rate of 1.11× 10-3 s-1. The experimental results show that after 7-pass CEC processing the tensile yield strength and elongation-to-failure of Mg-3Y alloy increased simultaneously. Furthermore, the strength differential effect (SDE) of tensioncompression of the alloy was weakened, especially the SDE value was only 3.3% when processed at 400 ℃.

作者: Xintao Liu Manping Liu Qudong Wang Wei Guo Dongdi Yin

作者单位: National Engineering Research Center of Light Alloy Net Forming,Shanghai Jiao Tong University,Shanghai 200240,China State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 767-771

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）