Effects of semi-solid isothermal treatments on microstructures of quasicrystal reinforced AZ91 alloys

摘要：

　　The as-cast and semi-solid microstructures of quasicrystal reinforced AZ91 alloys were investigated.The results show that the main phases of as-cast AZ91ZY1 and AZ91ZY2 alloys are all α-Mg,Ⅰ-phase,Mg17Al12 and Al2Y phase.The grain boundary phases contents increase with increasing Y and Zn contents.The better semi-solid processing technological parameters of AZ91ZY1 and AZ91ZY2 alloys are 580 ℃,30 min and 560 ℃,30 min respectively.The better semi-solid processing temperature of AZ91ZY2 alloy is lower than the one of AZ91ZY1 alloy is mainly attributed to the higher contents of the grain boundary phases in the AZ91ZY2 alloy.

关键词： Quasicrystals AZ91 Magnesium alloy Semi-solid

作者: Zhaoming Liu Xin wang Yingbo Zhang Hong Gao

作者单位: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China School of Materials Science Engineering, Southwest Jiaotong University, Chengdu 610031, China;School

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 551-555

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）