Influence of microstructures on thermal fatigue property of a nickel-base superalloy

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	Influence of microstructures on thermal fatigue property of a nickel-base superalloy
	P. C.; Chen Xia, F. W.; Xie, K.; Qiao, L.; Yu, J. J.
	2015
发表期刊	Frontiers of Materials Science
ISSN	2095-025X
卷号	9 期号:1 页码:85-92
摘要	Effect of microstructures such as the distribution and shape of carbide and gamma' phase on thermal fatigue property of a superalloy was investigated experimentally. The resistance of thermal fatigue of the studied alloy decreases with the rising upper temperature. For the as-cast alloy, the thermal fatigue crack mostly origins from carbide at low upper temperature and results from oxidation at high upper temperature. The thermal fatigue crack of the heat treated alloy is mainly initiated by the oxidized cavity and then propagates through the join of the oxidized cavity. The orientation of crack propagation and direction of dendrite growth of alloy have the angle of 45A degrees. There is gamma' denuded region near the thermal fatigue crack because of oxidation.
部门归属	[xia, peng-cheng ; chen, feng-wen ; xie, kun ; qiao, ling] shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. [xia, peng-cheng ; yu, jin-jiang] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; xia, pc (reprint author), shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. ; xpc328@126.com
关键词	Nickel-base Superalloy Thermal Fatigue Microstructure Crack High-temperature Single-crystal Behavior
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73982
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. C.,Chen Xia, F. W.,Xie, K.,et al. Influence of microstructures on thermal fatigue property of a nickel-base superalloy[J]. Frontiers of Materials Science,2015,9(1):85-92.
APA	P. C.,Chen Xia, F. W.,Xie, K.,Qiao, L.,&Yu, J. J..(2015).Influence of microstructures on thermal fatigue property of a nickel-base superalloy.Frontiers of Materials Science,9(1),85-92.
MLA	P. C.,et al."Influence of microstructures on thermal fatigue property of a nickel-base superalloy".Frontiers of Materials Science 9.1(2015):85-92.