空气压缩机叶片断裂失效分析

采用扫描电子显微镜、能谱分析仪和金相显微镜对空气压缩机叶片的宏微观形貌、断口表面成分、金相组织及硬度进行了观察和分析。结果表明：断裂叶片的硬度低于其他叶片,导致其抗高周疲劳性能下降,在近表面夹杂物处萌生疲劳裂纹,最终发生断裂。...

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Bibliographic Details
Published in	材料工程 no. 8; pp. 50 - 54
Main Author	有移亮董键张峥钟群鹏
Format	Journal Article
Language	Chinese
Published	北京航空航天大学材料科学与工程学院,北京100191 2013 北京航空航天大学空天先进材料与服役教育部重点实验室,北京100191
Subjects	叶片沉淀硬化不锈钢空气压缩机高周疲劳沉淀硬化不锈钢空气压缩机 air compressor high cycle fatigue precipitation-hardening stainless steel 叶片高周疲劳 blade
Online Access	Get full text
ISSN	1001-4381 1001-4381
DOI	10.3969/j.issn.1001-4381.2013.08.008

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Summary:	采用扫描电子显微镜、能谱分析仪和金相显微镜对空气压缩机叶片的宏微观形貌、断口表面成分、金相组织及硬度进行了观察和分析。结果表明：断裂叶片的硬度低于其他叶片,导致其抗高周疲劳性能下降,在近表面夹杂物处萌生疲劳裂纹,最终发生断裂。
Bibliography:	11-1800/TB air compressor; blade ; precipitation-hardening stainless steel ; high cycle fatigue The macro and micro feature of failure blade, chemical composition of fracture surface, met- allography and hardness were analyzed by SEM,EDS and optical microscope. The results revealed that lower hardness of failure blade resulted in decreased resistance to high cycle fatigue properties. The fatigue crack which caused final rupture initiated from the inclusion near surface. YOU Yi-liang1＂2 ,DONG Jian1＇2 ,ZHANG Zheng ,ZHONG Qun-peng （1 School of Materials Science and Engineering,Beihang University, Beijing 100191, Chinas2 Key I.aboratory of Advanced Aerospace Materials and Performance （Ministry of Education）,Beihang University,Beijing 100191 ,China）
ISSN:	1001-4381 1001-4381
DOI:	10.3969/j.issn.1001-4381.2013.08.008