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GH220合金是镍基难变形合金,用作900～950℃工作的涡轮叶片材料。 由冶金工业部抚顺钢厂、长城钢厂三分厂、北京钢铁研究总院、北京钢铁学院和航空工业部四二○厂、六二一所等单位组成的三结合联合攻关组经过三年多的共同努力,将GH220合金研制成功,通过了部级鉴定。各研制单位写出反映GH220合金研制、生产、应用等方面的研究成果的总结、论文60多篇,全面论述了
GH220 alloy is a nickel-based hard-deformable alloy used as a turbine blade material working at 900-950 ° C. By the Ministry of Metallurgical Industry Fushun Steel Plant, the Great Wall Steel Plant Branch III, Beijing Iron and Steel Research Institute, Beijing Institute of Iron and Steel and the Ministry of Aviation Industry Plant two hundred and twenty-two, two hundred twenty-two units composed of three combined joint research team after more than three years The joint efforts, GH220 alloy successfully developed, passed the ministerial identification. All research institutes have written a summary of the research results on the research, production and application of GH220 alloy, and have published over 60 papers on the research results.