Variation of Microstructure and Properties of Re-7075 Al Alloy after Homogenizing Annealing

摘要：

The variation of microstructure and properties of RE7075 Al alloy after homogenizing annealing were studied by some modern analytical instruments which including OM(optical microscope),SEM(scanning electron microscopy),EDS(energy dispersive spectroscopy ),Brinell hardness and conductivity meter of SIGMASCOPE SMP10 type in this experiment. The results shows that the alloys microstructure was uniform ,reduced the volume fraction of second phase,increased supersaturation of matrix and eliminated gradually dendritic segregation in homogenizing annealing state.The primary phase of matrix microstructure contain α(Al),T(Al2Mg3Zn3)and grain boundary microstructure include a(Al),Al2Cu,AlCuMg4La4 after homogenizing annealing.Compared with as cast condition,the conductivity and the hardness reduced after homogenizing annealing.

关键词： homogenizing annealing RE 7075 Al alloy microstructure properties

作者: Juguo Zhang Hongbin Zhu

作者单位: School of Applied Science institute,Jiangxi University of Science and Technology,Ganzhou,Jiangxi,Chi School Of Material Science and Engineering institute,Jiangxi University of Science and Technology,Ga

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 198-202

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）