Microstructure and Melting Behavior of Rapid Solidified Au-Ag-Ge alloy

摘要：

　　Rapid solidified Au-Ag-Ge alloy was prepared by the melt spinning method,microstructure and melting behavior of the rapid solidified alloy was investigated by means of SEM,TEM and DSC.DSC results show that liquid temperature of the rapid solidified alloy is about 3~4℃ lower than that of the alloy ingot,melting interval is also smaller.Minimum size of 40nm nanocrystalline has formed when the cooling rate is 1.293×106K/sec.Metastable supersaturated precipitated Ge-rich phases have been found at the grain boundaries,a structure mutation was found in the thickness direction of the rapid solidified alloy.Meanwhile,due to the stabilization transition of the supersaturated precipitated phase of the rapid solidified alloy,an exothermic peak has formed in the DSC curve,temperature of the exothermic peak becomes much lower when the cooling rate increases.

关键词： Au-Ag-Ge alloy melt spinning melting behavior nanocrystalline

作者: CUI Da Tian LIU Wen Hui LIU Long Fei

作者单位: College of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Materials Science and Nanotechnology (2012年材料科学与纳米技术国际会议(ICMSN 2012))

会议地点: 广州

会议语种:英文

页码: 618-622

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）