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材料工程  2012 

INCONEL718(GH4169)高温合金的发展与工艺

, PP. 92-100

Keywords: INCONEL718,镍基合金,718Plus,航空发动机

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Abstract:

INCONEL718合金(IN718)自从20世纪60年代初在美国的INCOHuntingtonAlloys(现为SpecialMetalsCo.)被发明并应用于涡轮零部件制造后,已成为航空发动机历史上应用最为广泛的镍基高温合金材料。现代飞机发动机上超过30%(质量分数)的关键零部件由718合金制成。本文回顾了718合金在航空发动机上的应用历史,对该合金的基本力学性能、高温稳定性,以及目前国外应用的铸、锻制造工艺现状做了综述。对国外正在研究的新型IN718衍生替代合金的发展现状进行了介绍。

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