Microstructural Evolution and Service Performance of Cold-drawn Pure Aluminum Conductor Wires
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2017年第9期
论文作者：X.M.Luo Z.M.Song M.L.Li Q.Wang G.P.Zhang
文章页码：1039 - 1043
摘 要：Microstructures and service performance（mechanical and electrical properties） of the commercially pure Al conductor wires subjected to different cold drawing strains were investigated. The results show that the microstructures of the cold-drawn Al wires along the radial direction were inhomogeneous, i.e. the texture in the center region was strong <111> and weak <001> components, while that in the surface region shifted from the initial cubic texture to a <112> component and finally developed into a strong<111> component. The volume fraction of the high angle grain boundaries in the surface region was higher than that in the center region. The cold-drawing process greatly enhanced the yield strength of the pure Al wires while retained the acceptable electrical resistivity. The strengthening mechanism and the variation of electrical conductivity of the cold-drawn Al wires are discussed through correlating with microstructure evolution.
X.M.Luo，Z.M.Song，M.L.Li，Q.Wang，G.P.Zhang
Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences
摘 要：Microstructures and service performance（mechanical and electrical properties） of the commercially pure Al conductor wires subjected to different cold drawing strains were investigated. The results show that the microstructures of the cold-drawn Al wires along the radial direction were inhomogeneous, i.e. the texture in the center region was strong <111> and weak <001> components, while that in the surface region shifted from the initial cubic texture to a <112> component and finally developed into a strong<111> component. The volume fraction of the high angle grain boundaries in the surface region was higher than that in the center region. The cold-drawing process greatly enhanced the yield strength of the pure Al wires while retained the acceptable electrical resistivity. The strengthening mechanism and the variation of electrical conductivity of the cold-drawn Al wires are discussed through correlating with microstructure evolution.
关键词：
