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《THE CHINESE JOURNAL OF NONFERROUS METALS》 2000-05
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Effect of heat treatment on mechanical properties and electrical conductivity of Cu-Cr(-Zr) alloy

LIAO Su san, YIN Zhi min, JIANG Qian, JIANG Feng, SONG Lian peng, WANG Ming pu (Department of Materials Science and Engineering, Central South University of Technology, Changsha 410083, P.R.China) [  
Cu 0.5Cr and Cu 0.5Cr 0.2Zr alloy plates were prepared. The effects of heat treatment on microstructure, mechanical properties and electrical conductivity have been studied. The results show that under 960 ℃, 1 h solution treating and 450 ℃, 20 h aging condition, the tensile strength, yield strength, elongation and electrical conductivity of Cu 0.5Cr alloy can reach 363 MPa, 274 MPa, 22% and 81%IACS respectively. Adding 0.2%Zr to Cu 0.5Cr alloy, the tensile strength and yield strength of the alloy increase by about 50 MPa. However, under this condition the electrical conductivity of the alloy decreases by 10%IACS. [
【Fund】: 湖南省自然科学基金!资助项目 ( 98JJY2 0 30 )
【CateGory Index】: TG14
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