Cu-0.8Cr-0.14Zr-0.06Mg合金时效特性的研究  

Study of Aging Characteristics of Cu-0.8Cr-0.14Zr-0.06Mg Alloy

作　　者：赵鹏程[1] 陈九磅[1] 鲁萍[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：《金属功能材料》2011年第3期25-27,共3页Metallic Functional Materials

摘　　要：通过不同的时效工艺研究了时效对Cu-0.8Cr-0.14Zr-0.06Mg合金性能的影响,并从微观的角度分析了合金的强化机理和电导率提高的原因。结果表明,经固溶后的合金在450℃时效3 h,硬度能达到最大值78HRB,电导率能达到78.5%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,而使得在保证合金有较高硬度的同时,电导率又能保持较高水平。The effect of different aging process on Cu-0.8Cr-0.14Zr-0.06Mg alloy＇s performance are studied in this arliche.The reasons of strengthening mechanism and the conductivity＇s increase are analyzed.The results showed that,the hardness can reach the maximum 78HRB,conductivity can reach 78.5% IACS after aging at 450 ℃ for 3 h.Metallography and SEM studies have shown that the alloy treatmented has a second phase precipitation and large numbers of twin.They make the alloy have higher hardness,at the same time,conductivity can also remain at a high level.

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]