Effects of Heat Treatment on Tensile Strength and Conductivity of Cu-Cr-Zr Alloy Doped with Lanthanum and Yttrium
Author of the article:REN Xiangyu;GAO Ping;GUO Weiza;LIU Sufen;ZHANG Ming;ZHENG Hongwei;LEI Yan;XU Zelong
Author's Workplace：Physical and Chemical Testing Center,Inner Mongolia Metal Material Research Institute, Baotou 014034,China;Military Representative Office,The People's Liberation Army in 447 Plant, Baotou 014002,China;China Jiuquan Satellite Launch Center, Satellite Launch Center, Jiuquan 732750,China
Key Words：Cu-Cr-Zr-La-Y alloy rare earth aging electrical conductivity tensile strength
Abstract：
Lanthanum and yttrium mixed doped Cu-0.684Cr-0.077Zr-0.012La-0.020Y alloy, after dealing with the different temperature solid solution, through metallographic microstructure and energy spectrum analysis, determine the alloy solid solution temperature is 920 ℃. 920 ℃ after solid solution treatment of the alloy after quenching water-cooling and by 520 ℃ for 2 h after aging treatment can obtain a better comprehensive performance, tensile strength is 407 MPa,conductivity is 79% IACS.
