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    Investigations on microstructural and mechanical properties of long-term thermally exposed superalloy Mar-M247 after rejuvenation heat treatment

    Investigations on microstructural and mechanical properties of long-term thermally exposed superalloy Mar-M247 after rejuvenation heat treatment by Song Wu, Lexin Yang, Yubing Pei, Fenling Wang, Changshuai Wang, Chao Luo, Bin Zhou, Xiufang Gong

    Published 2025-09-01

    Mar-M247 is a polycrystalline nickel-based superalloy utilized for blades in heavy-duty gas turbines. However, the microstructure degradation of the alloy during long-term aging includes coarsening of the γ′ phase and precipitation of TCP phase, which results in the degradation of creep rupture life...

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