GH150合金棒材的热处理制度  

Heat Treatment of Superalloy GH150

作　　者：蒙肇斌[1] 姚春发[2] 王延庆[1] 乔雪璎[1] 张旭瑶[1] 

机构地区：[1]钢铁研究总院高温材料研究所,北京100081 [2]钢铁研究总院结构材料研究所,北京100081

出　　处：《钢铁研究学报》2004年第5期63-67,共5页Journal of Iron and Steel Research

摘　　要：通过组织观察、室温和600℃拉伸试验以及600℃持久性能试验,研究了不同热处理制度对GH150合金棒材组织和性能的影响。研究结果表明,固溶温度对合金组织和性能的作用较为明显。当固溶处理温度较低时,合金的晶粒较小,拉伸性能好,而持久性能较差;而固溶处理温度较高时则与之相反。一次及二次时效处理温度的变化对合金的拉伸性能影响不大,但对持久性能有一些影响。时效处理温度较低时,合金中析出的γ′相、碳化物等较细小、弥散。The effect of heat treatment on microstructure and mechanical properties of superalloy GH150 were studied by means of optical and TEM examination, room-temperature and 600 ℃ tensile tests, and 600 ℃ stress rupture test. It was proved that quenching temperature has distinct influence on microstructure and mechanical properties. The lower solution temperature leads to finer grains and higher tensile properties but lower stress rupture lives, and vice versas. However, the primary and secondary aging temperatures have mild effect on tensile properties except stress rupture lives. Lower aging temperature lead to finer and more dispersive precipitation of γ′ phase and carbides in GH150 alloy.

关 键 词：高温合金 GH150 热处理 组织 力学性能 

分 类 号：TG156[金属学及工艺—热处理]