反复镦拔对Ni-20Cr-11Co-8Mo-4W合金组织和性能的影响  

Effects of repeated upsetting and drawing on microstructure and properties of Ni-20Cr-11Co-8Mo-4W alloy

作　　者：邱高松 朱慧荣 高宏波 

机构地区：[1]北京机械动力研究所,北京100074

出　　处：《金属热处理》2015年第2期124-126,共3页Heat Treatment of Metals

基　　金：国家重点基础研究发展计划(973计划)(2010CB631203)

摘　　要：研究了反复镦拔工艺对Ni-20Cr-11Co-8Mo-4W合金组织和力学性能的影响。对Ni-20Cr-11Co-8Mo-4W合金反复镦拔前后的径向微观组织进行了金相、扫描电镜观察和分析,并对试验合金反复镦拔前后的室温冲击断口形貌进行了观察和分析。研究结果表明,反复镦拔工艺可以明显改善Ni-20Cr-11Co-8Mo-4W合金的微观组织,从而提高合金的力学性能。Effects of repeated upsetting and drawing on microstructure and properties of Ni-20Cr-11Co-SMo-4W alloy were investigated.Mierostnlcture of the Ni-2OCr-11Co-8Mo-4W alloy in radial direction before and after repeated upsetting and drawing was observed and analyzed by metalloscope and SEM, and the room temperature impact fraetures were also observed and analyzed by SEM. The results show that repeatedly upsetting and stretching can significantly improve /he microstructure and mechanical properties of Ni-20Cr-11Co-SMo-4W alloy.

关 键 词：Ni-20Cr-11Co-8Mo-4W合金 镦拔工艺 冲击断口 拉伸性能 

分 类 号：TG306[金属学及工艺—金属压力加工] TG146.15[一般工业技术—材料科学与工程]