| 镍基单晶涡轮单晶材料的细观力学研究 |
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| 引用本文： | 岳珠峰,杨治国. 镍基单晶涡轮单晶材料的细观力学研究[J]. 燃气涡轮试验与研究, 2005, 18(1): 9-13 |
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| 作者姓名： | 岳珠峰 杨治国 |
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| 作者单位： | 西北工业大学,力学与土木建筑学院,西安,710072;中国航空动力机械研究所,株洲,412002 |
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| 基金项目： | 国家自然科学基金资助项目(50375124)，航空科学基金资助项目(03B53003)，航空支撑基金资助项目 |
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| 摘 要： | 本文针对CMSX-4单晶材料，在细观层次上对筏化-解筏以及空穴这两种主要损伤机理进行了细观试验研究。结果表明．空穴在蠕变、疲劳和热机械疲劳损伤中起着重大的作用；蠕变过程中的筏化规律影响材料的蠕变寿命，但细观层次的筏化，影响因素较为复杂。本文的研究结果对准确评定镍基单晶涡轮叶片的剩余寿命具有参考作用。
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| 关 键 词： | 镍基单晶合金 空穴 筏化 细观 |
| 文章编号： | 1672-2620(2005)01-0009-05 |
Micro Study of the Nickel-based Single Crystal Super-alloys |
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| YUE Zhu-feng,YANG Zhi-guo. Micro Study of the Nickel-based Single Crystal Super-alloys[J]. Gas Turbine Experiment and Research, 2005, 18(1): 9-13 |
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| Authors: | YUE Zhu-feng YANG Zhi-guo |
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| Affiliation: | YUE Zhu-feng1,YANG Zhi-guo2 |
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| Abstract: | This paper introduces the micro study carried out for the two main damage mechanisms of rafting-solution rafting and void of CMSX-4 single crystal material at micro levels. The results show that void plays a significant role in the damages of creep, fatigue and thermal-mechanical fatigue; and the creeping life of materials is affected by the rafting rule during creep. But the affection factors for rafting at micro levels are rather complicate. The results of the paper can be used to precisely evaluate the remainder life of Nickel-based single crystal turbine blade. |
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| Keywords: | Nickel-base single crystal super-alloys void rafting micro-mechanics |
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