轴流压缩机第一排叶片材料450钢冲蚀性能及磨损因素的试验研究

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Surface Science and Engineering Pub Date : 2017-06-26 DOI:10.1504/IJSURFSE.2017.10005750

E. Poursaeidi, A. M. Niaei, M. Arablu, A. Salarvand

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引用次数: 10

摘要

某轴流压气机一级叶片在运行30,895小时后发生断裂，原因是由于侵蚀和腐蚀机制不佳造成的凹坑和微裂纹。在本研究中，在真实叶片的模拟条件下，对叶片材料的侵蚀进行了测试。通过磨料颗粒90°和54°的冲击角测试，预测了叶片的冲蚀特性。使用现场叶片的数据验证了预测的叶片侵蚀。利用扫描电子显微镜、波长和能量色散x射线光谱学对侵蚀试样进行了检测。观察结果表明，90°撞击产生的凹坑比54°撞击产生的凹坑要多，但后者产生的凹坑比前者更长、更严重。此外，研究结果表明，现场叶片的侵蚀强度足以在叶片上形成严重的凹坑，从而消除了裂纹起裂时间。

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Experimental investigation on erosion performance and wear factors of custom 450 steel as the first row blade material of an axial compressor

A first-stage blade of an axial compressor was fractured after 30,895 hours of operation due to existence of pits and micro-cracks, which were created by erosion and poor corrosion mechanisms. In this research, erosion of the blade material is tested under simulated conditions of the real blade. Abrasive particles impingement angles of 90° and 54° are tested to predict the erosion characteristics on the blade. The predicted blade erosion is validated using the data taken from on-site blades. The eroded specimens are examined by scanning electron microscopy, and wavelength- and energy-dispersive X-ray spectroscopy. According to the observations, although the 90° impingements make more pits than 54° impingements, the latter creates longer and more critical pits than the former. Furthermore, the results show that the erosion in the on-site blades is strong enough to assist the formation of severe pits on them which eliminates the crack initiation time.

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来源期刊

International Journal of Surface Science and Engineering 工程技术-材料科学：膜

CiteScore

1.60

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： IJSurfSE publishes refereed quality papers in the broad field of surface science and engineering including tribology, but with a special emphasis on the research and development in friction, wear, coatings and surface modification processes such as surface treatment, cladding, machining, polishing and grinding, across multiple scales from nanoscopic to macroscopic dimensions. High-integrity and high-performance surfaces of components have become a central research area in the professional community whose aim is to develop highly reliable ultra-precision devices.