Failure analysis of air compressor blade

Failure analysis of air compressor blade

The macro and micro feature of failure blade, chemical composition of fracture surface, metallography 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 fatigu...

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Veröffentlicht in:Cai liao gong cheng = Journal of materials engineering 2013-08 (8), p.50-54
Hauptverfasser: You, Yi-Liang, Dong, Jian, Zhang, Zheng, Zhong, Qun-Peng
Format: Artikel
Sprache:chi
Schlagworte:
Blades
Crack propagation
Failure analysis
Fatigue failure
Hardness
High cycle fatigue
Materials engineering
Optical microscopes
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Beschreibung
Zusammenfassung:The macro and micro feature of failure blade, chemical composition of fracture surface, metallography 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.
ISSN:1001-4381
DOI:10.3969/j.issn.1001-4381.2013.08.008