Analysis of superalloy turbine blade tip cracking during service

IMR OpenIR

	Analysis of superalloy turbine blade tip cracking during service
	Y. J. Xie; M. C. Wang; G. Zhang; M. Chang
	2006
发表期刊	Engineering Failure Analysis
ISSN	1350-6307
卷号	13 期号:8 页码:1429-1436
摘要	High Pressure Turbine (HPT) first stage blade is the most important rotational components of aero-engine. It operates at high temperature and under conditions of extreme environmental attack such as oxidation and corrosion, is especially subjected to degradation by oxidation, corrosion and wear. During the service of aero-engine, the HPT first stage blades made of (sic) c 6 y nickel-based superalloy suffer from increasing blade tip cracks after hundreds of hours service. This significantly affects the whole engine function and, of course, safety of the aircraft. In this paper, the premature tip cracking of the HPT first stage blade is investigated. The research result shows that turbine blade tip is initially damaged by rubbing and corrosion over a period time, premature cracking of blade tip is caused by a combination mechanism of environment and thermal stress. During turbine blade maintenance and refurbishment, coating of both oxidation-resistance and abrasion-resistance should be applied in blade squealer tip to counteract the problem. (C) 2005 Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing 100039, peoples r china. shenyang liming aeroengine grp corp, shenyang 110043, peoples r china.;xie, yj (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china;yjxie@imr.ac.cn
关键词	Turbine Blade Tip Crack Corrosion Thermal Stress Failure Analysis
URL	查看原文
WOS记录号	WOS:000239719200024
引用统计	被引频次：49[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34610
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Xie,M. C. Wang,G. Zhang,et al. Analysis of superalloy turbine blade tip cracking during service[J]. Engineering Failure Analysis,2006,13(8):1429-1436.
APA	Y. J. Xie,M. C. Wang,G. Zhang,&M. Chang.(2006).Analysis of superalloy turbine blade tip cracking during service.Engineering Failure Analysis,13(8),1429-1436.
MLA	Y. J. Xie,et al."Analysis of superalloy turbine blade tip cracking during service".Engineering Failure Analysis 13.8(2006):1429-1436.