| 压缩机17-4PH不锈钢叶轮叶片的失效分析 |
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| 引用本文： | 康珍玮,周根树,刘立军,张潇珂,王梦杰.压缩机17-4PH不锈钢叶轮叶片的失效分析[J].金属热处理,2021,46(11):254-257. |
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| 作者姓名： | 康珍玮 周根树 刘立军 张潇珂 王梦杰 |
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| 作者单位： | 1.西安交通大学 金属材料强度国家重点实验室, 陕西 西安 710049; 2.西安交通大学 能源与动力工程学院, 陕西 西安 710049 |
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| 基金项目： | 西安市科技创新计划(201805064ZD15CG48) |
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| 摘 要： | 某氮压机叶轮上的叶片发生早期失效破裂,从叶片的化学成分、显微组织、力学性能和断口的宏观、微观形貌等方面分析其失效原因。结果表明,叶片材料为17-4PH不锈钢(对应中国牌号05Cr17Ni4Cu4Nb)。叶片断口上有明显的疲劳特征,表明断裂属于疲劳断裂。叶片材料的化学成分、组织及性能满足标准要求。叶片的振动是造成断裂的主要原因。
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| 关 键 词： | 压缩机叶轮叶片 失效分析 17-4PH不锈钢 疲劳断裂 |
| 收稿时间： | 2021-05-22 |
Failure analysis of compressor impeller blade made of 17-4 PH stainless steel |
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| Kang Zhenwei,Zhou Genshu,Liu Lijun,Zhang Xiaoke,Wang Mengjie.Failure analysis of compressor impeller blade made of 17-4 PH stainless steel[J].Heat Treatment of Metals,2021,46(11):254-257. |
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| Authors: | Kang Zhenwei Zhou Genshu Liu Lijun Zhang Xiaoke Wang Mengjie |
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| Affiliation: | 1. State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an Shaanxi 710049, China; 2. School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an Shaanxi 710049, China |
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| Abstract: | Blades on the impeller of some kind of nitrogen compressor failed in early stage of service life. The chemical composition, metallographic structure, mechanical properties, macroscopic and microscopic fracture morphologies of the blades were analyzed for the failure causes. The results show that the impeller blade material is 17-4PH stainless steel and there are obvious fatigue characteristics on the blade fracture, indicating that the fracture is a fatigue fracture. The chemical composition, microstructure and properties of the blade material meet the standard requirements. The main cause of fracture is vibration of the blades. |
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| Keywords: | compressor impeller blade failure analysis 17-4PH stainless steel fatigue fracture |
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