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材料工程  2007 

单晶涡轮叶片合金的薄截面尺寸效应

, PP. 74-77

Keywords: 单晶高温合金,截面尺寸效应,显微组织,持久性能

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Abstract:

单晶涡轮叶片合金存在明显的薄截面尺寸效应,当截面尺寸小于0.5mm时,持久寿命大幅降低,尤其是中温持久寿命.截面尺寸效应是由于试样厚度减小引起显微组织和表面完整性的变化以及实验误差综合影响所致.

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