研究了750℃长期时效对GH783组织与性能的影响.测试了合金的力学性能,并采用光学显微镜和扫描电镜对合金的组织进行了分析.结果表明:GH783合金在750℃长期时效过程中,随着时效时间的延长,γ'相尺寸长大比较明显;β相析出增多;合金的强度和持久寿命有所下降,而延伸率和断面收缩率有所提高.
参考文献
[1] | HECK K A;SMITH J S;SMITH R .Inconel alloy 783:An oxidation-resistant,low expansion superalloy for gas turbine applicants[J].Journal of Engineering for Gas Turbines and Power,Transactions of the ASME,1998,120(04):363-369. |
[2] | TUNDERMANN J H .Development of Inconel alloy 783,a low thermal expansion,crack growth resistant superalloy[J].Acta Metallurgica Sinica(English Letters),1996,9(06):503-507. |
[3] | HIGGINBOTHAM B E;CHANG K M.Microstructure and property control of Inconel alloy 783 through thermomechanical processing[A].St.Louis,Missouri,1997 |
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