| 单晶高温合金接近使用条件下的寿命估算与损伤分析 |
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| 引用本文： | 陈国良,郭宏,吴仲棠.单晶高温合金接近使用条件下的寿命估算与损伤分析[J].航空材料学报,1995(3). |
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| 作者姓名： | 陈国良 郭宏 吴仲棠 |
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| 作者单位： | 北京科技大学，北京航空材料研究所 |
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| 摘 要： | 针对发动机热端部件承受的典型载荷谱，发展了一种通用的寿命预测方程和损伤分析方法。这个方法是在疲劳蠕变交互作用断裂特征图及其最大应力修正的寿命方程基础上建立的。根据ＤＤ３单晶合金的疲劳蠕变交互作用断裂特征图及其最大应力修正的寿命方程，验证了本方法是切实可行的。预测精度是符合要求的。
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| 关 键 词： | 单晶高温合金 疲劳蠕变交互作用 寿命预测 损伤分析 |
LIFE PREDICTION AND DAMAGE ANALYSIS OF A SINGLE CRYSTAL Ni-BASE SUPERALLOY UNDER COMPLEX STRESS CONDITIONS |
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| Chen Guoliang ,Guo Hong.LIFE PREDICTION AND DAMAGE ANALYSIS OF A SINGLE CRYSTAL Ni-BASE SUPERALLOY UNDER COMPLEX STRESS CONDITIONS[J].Journal of Aeronautical Materials,1995(3). |
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| Authors: | Chen Guoliang Guo Hong |
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| Abstract: | In this paper an attempt was made to derive a universal life prediction equation and catalogue damagesfor a typical fatigue-creep interaction condition. The equation was established on the basis of the fatigue-creep interaction fracture map and its maximum stress modified life equations,Asingle crystal Ni base su- peralloy DD3 was used to illustrate the applications of both life prediction and damage analysis. The re-sults proved the methods were realistic,and the accuracy was acceptable. |
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| Keywords: | single crystal superalloy fatigue-creep interaction life prediction damage analysis |
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