A mu-Phase behavior in a cast Ni-base superalloy

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	A mu-Phase behavior in a cast Ni-base superalloy
	X. Z. Qin; J. T. Guo; C. Yuan; G. X. Yang; L. Z. Zhou; H. Q. Ye
	2009
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	44 期号:18 页码:4840-4847
摘要	The response of mu phase to applied stress and long-term thermal exposure has been investigated in the cast Ni-base superalloy K446. It is found that during stress rupture, the applied stress accelerates the precipitation and growth of mu phase. However, during thermal exposure the mu phase precipitating in the form of needles and granules experiences a complicated evolution. The needles, fiber- or sheet-shaped in three-dimension, align very regularly during exposure, either lying in three directions with an acute angle to one another or in two directions perpendicular to each other, the mechanisms of which are characterized in detail. In addition, it is concluded that an excessive precipitation of mu phase severely degrades the mechanical properties of the alloy, whereas its evolution behavior during thermal exposure is determined to have an insignificant influence on the properties.
部门归属	[qin, x. z.; guo, j. t.; yuan, c.; zhou, l. z.; ye, h. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [yang, g. x.] dongfang turbine co ltd, deyang 618201, peoples r china.;qin, xz (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;xzqin@imr.ac.cn
关键词	Single-crystal Superalloy Thermal Exposure Precipitation Stability Rupture Stress
URL	查看原文
WOS记录号	WOS:000268772800010
引用统计	被引频次：52[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/321006/32244
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Z. Qin,J. T. Guo,C. Yuan,et al. A mu-Phase behavior in a cast Ni-base superalloy[J]. Journal of Materials Science,2009,44(18):4840-4847.
APA	X. Z. Qin,J. T. Guo,C. Yuan,G. X. Yang,L. Z. Zhou,&H. Q. Ye.(2009).A mu-Phase behavior in a cast Ni-base superalloy.Journal of Materials Science,44(18),4840-4847.
MLA	X. Z. Qin,et al."A mu-Phase behavior in a cast Ni-base superalloy".Journal of Materials Science 44.18(2009):4840-4847.