Effects of alloying and deformation on microstructures and properties of Cu-Mg-Te-Y alloys  

合金化和形变处理对Cu-Mg-Te-Y合金组织性能的影响(英文)

作　　者：陈亮[1] 周秉文[1] 韩建宁[1] 薛彦燕 贾非[1] 张兴国[1] 

机构地区：[1]大连理工大学材料科学与工程学院,大连116024

出　　处：《Transactions of Nonferrous Metals Society of China》2013年第12期3697-3703,共7页中国有色金属学报（英文版）

基　　金：Project (50875031) supported by the National Natural Science Foundation of China;Project (20095263005) supported by Aviation Science Foundation of China

摘　　要：New copper alloys with high mechanical properties and high electrical conductivity were prepared, and the effects of addition of minor Mg and Y elements on microstructures and properties were studied. The high tensile strength of above 510 MPa, high elongation of 11%and high electrical conductivity of over 63%IACS can be simultaneously obtained in Cu-0.47Mg-0.20Te-0.04Y alloy after deforming and annealing treatment. Effects of purification together with the grain refining by Y and solid-solution strengthening by Mg are appropriate for enhancing mechanical properties and electrical conductivity of the copper alloys.制备具有高强高导性能的铜合金,研究添加Mg和微量的Y对合金的组织和性能的影响。通过变形和退火等工艺处理后,Cu-0.47Mg-0.2Te-0.04Y合金的性能指标可达到:抗拉强度510 MPa,伸长率11%,导电率大于63%IACS。稀土元素Y的熔体净化作用、细晶强化作用和添加适量Mg产生的固溶强化作用能够提高合金的力学性能和导电率。

关 键 词：Cu-Mg-Te-Y alloys ALLOYING DEFORMATION mechanical properties electrical conductivity 

分 类 号：TG146.11[一般工业技术—材料科学与工程]