| DD3单晶镍基合金蠕变—疲劳及寿命预测 |
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| 引用本文： | 苏翰生,吴仲棠.DD3单晶镍基合金蠕变—疲劳及寿命预测[J].金属学报,1993,29(1):25-32. |
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| 作者姓名： | 苏翰生 吴仲棠 |
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| 作者单位： | 北京航空材料研究所 高级工程师(苏翰生)，北京航空材料研究所 北京(100095)北京81号信箱23号分箱(吴仲棠) |
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| 摘 要： | 从应变范围区分法(SRP),应变能区分法(SEP)的有关概念出发,研究DD3单晶镍基合金拉—拉应力状态下的蠕变—疲劳性能和保持时间的影响,并对其进行了定量计算;同时,用应变能区分法的数值法(SEP—NCM)实现对拉—拉应力状态下蠕变—疲劳的寿命预测。
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| 关 键 词： | 单晶镍基合金 蠕变疲劳 寿命 预测 |
| 收稿时间： | 1993-01-18 |
| 修稿时间： | 1993-01-18 |
CREEP-FATIGUE BEHAVIOUR OF A Ni-BASE SINGLE CRYSTAL ALLOY DD3 AND ITS LIFE PREDICTION |
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| SU Hansheng,WU Zhongtang Beijing Institute of Aeronautical Materials.CREEP-FATIGUE BEHAVIOUR OF A Ni-BASE SINGLE CRYSTAL ALLOY DD3 AND ITS LIFE PREDICTION[J].Acta Metallurgica Sinica,1993,29(1):25-32. |
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| Authors: | SU Hansheng WU Zhongtang Beijing Institute of Aeronautical Materials |
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| Affiliation: | SU Hansheng;WU Zhongtang Beijing Institute of Aeronautical Materials |
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| Abstract: | Creep-fatigue behaviour of a Ni-base single crystal alloy DD3 under condi-
tion of tension-tension stress was investigated from some concept about strain range parti-
tioning (SRP) and strain energy partitioning (SEP). Study of effect of hold time and its quan-
titative computation was also made. Using numerical method of SEP (SEP-NCM), creep-fa-
tigue life prediction under condition of tension-tension strees was performed. |
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| Keywords: | strain energy partitioning creep-fatigue Ni-base single crystal alloy hold time |
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