热处理对Cu-0.6Cr-0.09Zr-0.08Mg合金特性的影响  

Effect of Heat Treatment on Characteristics of Cu-0.6Cr-0.09Zr-0.08Mg Alloy

作　　者：王杰[1] 陈九磅[1] 赵鹏程[1] 程银健[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《热加工工艺》2011年第18期185-187,共3页Hot Working Technology

摘　　要：研究时效对Cu-0.6Cr-0.09Zr-0.08Mg合金性能的影响,并从微观角度分析了合金的强化机理和导电率提高的原因。结果表明,经固溶后的合金在420℃时效3h,硬度达到最大值(81HRB),导电率达到76.5%IACS。金相组织和扫描电镜研究表明,处理后的合金有第二相的析出和大量的孪晶,从而使合金在保证有较高硬度的同时,导电率又能保持在一较高水平。The effects of aging process on performance of Cu-0.6Cr-0.09Zr-0.08Mg alloy were studied.The strengthening mechanism and the reasons of increasing conductivity were analyzed.The results show that the alloy after aging at 420 ℃ for 3 h,the hardness reaches the maximum 81 HRB,conductivity 76.5%IACS.Metallography and SEM results show that the treatmented alloy has a second phase precipitation and large numbers of twin crystal,while make the alloy hardness higher,meanwhile,the conductivity remains at a high level as well.

关 键 词：CU-CR-ZR 时效 析出 第二相粒子 

分 类 号：TG156.92[金属学及工艺—热处理]