| 某发动机一级涡轮叶片断裂分析 |
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| 引用本文： | 谢发勤,吴向清,梁金星.某发动机一级涡轮叶片断裂分析[J].理化检验(物理分册),2006,42(4):202-204,215. |
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| 作者姓名： | 谢发勤 吴向清 梁金星 |
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| 作者单位： | 西北工业大学航空学院,西安,710072 |
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| 摘 要： | 以某发动机涡轮一级事故叶片为研究对象，对断裂叶片进行了宏、微观形貌观察，硬度测试以及断口成分检查，分析了叶片裂纹的产生与发展过程，探讨了叶片断裂失效的原因。结果表明，叶片断裂模式为机械疲劳断裂。提出了预防措施。
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| 关 键 词： | 发动机 涡轮叶片 共振 疲劳断裂 |
| 文章编号： | 1001-4012（2006）04-0202-03 |
| 收稿时间： | 2005-05-16 |
| 修稿时间： | 2005-05-16 |
THE FRACTURE ANALYSIS OF THE FIRST STAGE TURBINE BLADES IN AN AERO-ENGINE |
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| XIE Fa-qin,WU Xiang-qing,LIANG Jing-xing.THE FRACTURE ANALYSIS OF THE FIRST STAGE TURBINE BLADES IN AN AERO-ENGINE[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2006,42(4):202-204,215. |
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| Authors: | XIE Fa-qin WU Xiang-qing LIANG Jing-xing |
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| Affiliation: | School of Aeronautics, Northwestern Polytechnical University, Xian 710072, China |
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| Abstract: | In this paper, the research object is the first stage turbine blades with trouble in an aero-engine. Through the observation of the morphology, microstructure, hardness and components of the turbine blades cross section with crack, the initiation and development process of the turbine blades crack are analyzed and the reason of the failure is studied. Finally the failure mode of the turbine blades is established and the method to prevent the failure in the first stage turbine blades in an aero-engine is put forward. |
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| Keywords: | Aero-engine Turbine blades Resonance Fatigue fracture |
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