| 夹杂物对粉末高温合金损伤行为的影响 |
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| 引用本文： | 贾波,李春光.夹杂物对粉末高温合金损伤行为的影响[J].失效分析与预防,2006,1(2):29-32. |
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| 作者姓名： | 贾波 李春光 |
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| 作者单位： | 1. 北京航空航天大学,北京,100083
2. 北京航空材料研究院,北京,100095 |
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| 摘 要： | 在简要介绍粉末高温合金中夹杂物来源的基础上,分析了夹杂物对粉末高温合金损伤行为,尤其是疲劳行为的影响,并对含夹杂物粉末高温合金材料的损伤机理和疲劳寿命预测模型进行了介绍.指出了粉末高温合金中夹杂物对其疲劳性能影响显著,且这种影响是多方面的,夹杂物的尺寸、数量、位置和取向等都会影响合金的疲劳行为.
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| 关 键 词： | 粉末高温合金 夹杂物 低周疲劳 寿命预测 |
| 文章编号： | 1673-6214（2006）02-0029-04 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-03-202006-04-18 |
Influence of Inclusions on Failure Behaviors in PM Superalloys |
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| JIA Bo,LI Chun-guang.Influence of Inclusions on Failure Behaviors in PM Superalloys[J].Failure Analysis and Prevention,2006,1(2):29-32. |
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| Authors: | JIA Bo LI Chun-guang |
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| Affiliation: | 1 Beijing University of Aeronautics and Astronautics, Beijing 100083, Chuna; 2 Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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| Abstract: | On the basis of introducing origins of the inclusions, influence of inclusions on the failure behaviors, especially the fatigue behaviors of PM superalloys are summarized. Failure mechanism and fatigue life prediction models of PM superalloys with inclusions are also introduced. It is indicated that the characteristics of inclusions, including the sizes, locations, quantities and orientations, etc. have gw.at effect on the fatigue behaviors of PM superalloys. |
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| Keywords: | PM superalloy inclusion low cycle fatigue life- prediction |
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