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金属学报  1999 

铸造Ni基高温合金K417的高温低周疲劳行为

, PP. 1144-1150

Keywords: 高温合金,高温低周疲劳,循环应力响应,镍基

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Abstract:

研究了铸造Ni基高温合金K417在650-900℃温度范围内总应变控制条件下的低周疲劳性能和断裂行为.对应变-寿命数据和循环应力-应变数据进行了分析,进而给出了K417合金在不同实验温度下的应变疲劳参数.合金在循环形变过程中可表现为循环硬化,循环软化或循环稳定.

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