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为了提高喷气发动机涡轮叶片等用的Ni基单晶超合金(以下简称Ni基超合金)的使用温度,开发了添加Re等重元素和Ru等贵金属的第4、第5代Ni基超合金,其中第4代合金TMS-138A以及第5代合金TMS-196具有最优良的性能,有望在今后用于喷气发动机涡轮。
In order to improve the service temperature of a Ni-based single crystal superalloy (hereinafter referred to as Ni-based superalloy) for use in jet turbine blades and the like, fourth and fifth generation Ni-based superalloys have been developed by adding heavy elements such as Re and noble metals such as Ru, Among them, the 4th generation alloy TMS-138A and the 5th generation alloy TMS-196 have the best performance and are expected to be used for the jet turbine in the future.