Study on Microstructure and Properties of Cu-1Ag Alloy Microwire in Multi-pass Drawing
Author of the article:FENG Jiang;SONG Kexing;HE Jilin;CHENG Chu;ZHANG Chaomin;ZHOU Yanjun;CAO Jun;HUANG Tao;ZHANG Xuebin
Author's Workplace：School of Material Science and Engineering,Henan University of Science and Technology,Luoyang 471023;Provincial and Ministerial Co-construction Collaborative Innovation Center of Nonferrous New Materials and Advanced Processing Technology,Luoyang 471023,China;Henan Key Laboratory of Nonferrous Materials Science and Processing Technology,Luoyang 471023,China;School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China
Key Words：vertical continuous casting Cu-1Ag alloy microwire properties multi-pass drawing
Abstract：
Cu-lAg alloy casting rods were prepared by three chamber vacuum smelting gas shielded cold vertical continuous casting and Cu-lAg alloy micro-wires were prepared by multi-pass drawing.The variation of mechanical and electrical properties of micro-wires of Cu-lAg alloy with strain were studied.The results show that theφ7.8 mm with continuous casting rod longitudinal columnar crystal structure,which becomes a fibrous structure in multi-pass drawing.The tensile strength of Cu-lAg alloy increases with increasing strain.When the strain is 11.93,the tensile strength and conductivity are 963 MPa and 92.8%IACS,respectively.Its tensile strength is 37.6%higher than that of pure Cu,while its elongation is 2%,which is similar or equivalent to that of pure Cu.The conductivity of Cu-lAG alloy decreased first and then stabilized with the increase of strain,and the relationship between the conductivity and strain is established.
