Microstructure and mechanical properties of thixoforged A356 aluminum alloy wheels

摘要：

The semisolid A356 aluminum alloy round billets were prepared by low temperature pouring and thixoforged into wheels in 200T oil press. The microstructures and mechanical properties of thixoforged wheels were studied. The results show that the A356 aluminum alloy round billets with fine equiaxed and spherical grains can be obtained by low temperature pouring at 635~655°C, and its optimum reheating process is isothermal reheating at 600 °C for 60min. The microstructure of thixoforged wheels consists of spherical a-Al grains and α+Si eutectic. The yield strength, ultimate tensile strength and elongation of thixoforged wheeis with T6 heat treatment are 211.9 MPa, 318.1 MPa and 5.9％, respectively. It is suggested that the thixoforged A356 aluminum alloy wheels have a higher comprehensive mechanical properties.

关键词： aluminum alloy wheel semisolid metal thixoforging low temperature pouring

作者: WANG Shuncheng QI Wenjun ZHENG Kaihong

作者单位: Institute of Metal Processing and Forming Technology,Guangdong General Research Institute of Industrial Technology,Guangzhou 510650,China

会议类型: 国际会议

会议名称: The 12th Asian Symposium on Precision Forging 第12届亚洲精密锻造学术研讨会 ASPF2012

会议地点: 苏州

会议语种:英文

页码: 140-144

在线出版日期: 2012-10-21（万方平台首次上网日期，不代表论文的发表时间）