Effect of cooling rate on the microstructure of Cu80Cr20 alloys

摘要：

　　The effect of cooling rate on the microstructure of Cu80Cr20 alloys was studied by using vacuum non-consumable arc melting,vacuum induction melting,electromagnetic levitation and splat quenching.The microstructure evolution of the Cr-rich were analyzed by scanning electron microscopy (SEM) and optical microscopy.The results showed that nonuniform Cr-rich dendrite distributes on Cu-rich matrix for arc melted alloys and uniform Cr-rich dendrite distributes on Cu-rich matrix for electromagnetic levitation melted alloys and vacuum induction melted alloys.However,the Cr-rich phase show both dendrites and spheroids for splat quenched alloys.This means liquid phase separation occurred during rapid solidification.

关键词： Cu80Cr20 alloys rapid solidification microstructure

作者: Z.M.Zhou W.J.Huang J.Luo X.P.Li T.Zhou B.B.Lei C.H.Wang H.Xia C.Y.Peng

作者单位: School of Materials Science and Engineering,Chongqing University of Technology,Chongqing,400054,Chin School of Materials Science and Engineering,Chongqing University of Technology,Chongqing,400054,Chin

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 704-707

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）