Microstructure of phases in a Cu–Zr alloy  

作　　者：Li-Jun Peng Xu-Jun Mi Bai-Qing Xiong Hao-Feng Xie Guo-Jie Huang 

机构地区：[1]State Key Laboratory of Nonferrous Metals and Processes,General Research Institute for Nonferrous Metals

出　　处：《Rare Metals》2015年第10期706-709,共4页稀有金属（英文版）

基　　金：financially supported by the Special Foundation for Technology Research and Development in Research Institute of China(No.2011DIA5k023)

摘　　要：The morphology and crystallography of phases in the Cu-0.12% Zr alloy were investigated by scanning electron microscope(SEM), transmission electron microscope(TEM), and high-resolution transmission electron microscope(HRTEM). The results show that the as-cast microstructure of Cu–Zr alloy is mainly Cu matrix and eutectic structure which consist of Cu and Cu5Zr phases with a fine lamellar structure. The disk-shaped and plateliked Cu5Zr phases with fcc structure are found in the matrix, in which habit plane is parallel to {111}a plane of the matrix.Between the copper matrix and Cu5Zr phase,there exists an orientation relationship of [112]a|| [011]Cu5Zr;(111)a||(111)Cu5Zr. The space structure model of Cu5Zr phase can be established.The morphology and crystallography of phases in the Cu-0.12% Zr alloy were investigated by scanning electron microscope(SEM), transmission electron microscope(TEM), and high-resolution transmission electron microscope(HRTEM). The results show that the as-cast microstructure of Cu–Zr alloy is mainly Cu matrix and eutectic structure which consist of Cu and Cu5Zr phases with a fine lamellar structure. The disk-shaped and plateliked Cu5Zr phases with fcc structure are found in the matrix, in which habit plane is parallel to {111}a plane of the matrix.Between the copper matrix and Cu5Zr phase,there exists an orientation relationship of [112]a|| [011]Cu5Zr;(111)a||(111)Cu5Zr. The space structure model of Cu5Zr phase can be established.

关 键 词：Cu–Zr alloy MICROSTRUCTURE Crystal structure MORPH 

分 类 号：TG146.11[一般工业技术—材料科学与工程]