Precipitation behavior of Cd in Al-5wt.%Cu based alloy during solidification

摘要：

　　The precipitation behavior of Cd in an Al-5wt.%Cu based alloy during solidification were investigated,using scanning electron microscopy (SEM) and transmission electron microscope (TEM) observations.It has been found that a novel phase (Al4Cu) is observed except α-Al,θ-Al2Cu,T-Al12CuMn2 phases of Al-5wt.%Cu based alloy during solidification.This phase,with chemical element similar to Al2Cu,was present as closed hexagonal structure,which distributed dispersedly at the edge of grain boundary and adjacent to Al2Cu phase.Moreover,it has the same crystal structure with Cd and satisfies the lattice matching principle,which makes it suitable for the heterogeneous nucleation site for precipitation of Cd.

关键词： Al-5wt. Cu Based Alloy Precipitation Relationship Al4Cu Cd

作者: Min Li Lanrong Cai Zhoude Qu

作者单位: Tianjin Key Laboratory of High Speed Cutting & Precision Machining(TUTE),Tianjin300222, China

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: 964-967

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）