Relative stability of carbides and their effects on the properties of K465 superalloy

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	Relative stability of carbides and their effects on the properties of K465 superalloy
	J. X. Yang; Q. Zheng; X. F. Sun; H. R. Guan; Z. Q. Hu
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	429 期号:1-2 页码:341-347
摘要	Thermal exposure specimens of K465 superalloy are carried out at 850, 950, 1000, 1050 and 1100 degrees C in order to investigate the stability of carbides. MC carbide is stable from 850 to 950 degrees C; M6C carbide is most stable above 1000 degrees C; M23C6 carbide appears in the 950-1000 degrees C temperature range. The rate of MC decomposition increases with the rise of thermal exposure temperature. Some M6C carbide particles, which are transformed from MC carbide, have irregular morphology and adhere to the original MC carbide; the other M6C carbide particles are precipitated in the forms of needle and tiny block. Furthermore, needle-shaped M6C carbide is the most prevalent and has the coherent relationship with the matrix. M6C and script-like MC carbide particles are detrimental to room temperature tensile and stress rupture properties of the alloy. M23C6 particles are precipitated in grain boundaries, but have little effect on the properties of the alloy because of their small amount. (c) 2006 Elsevier B.V All rights reserved.
部门归属	yang, jx (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jxyang@imr.ac.cn
关键词	Superalloy Thermal Exposure Carbides Stability Mc Carbide Base Superalloy Precipitation Morphology Chemistry Behavior Alloy
URL	查看原文
WOS记录号	WOS:000239685900046
引用统计	被引频次：67[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/321006/34644
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. X. Yang,Q. Zheng,X. F. Sun,et al. Relative stability of carbides and their effects on the properties of K465 superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,429(1-2):341-347.
APA	J. X. Yang,Q. Zheng,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2006).Relative stability of carbides and their effects on the properties of K465 superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,429(1-2),341-347.
MLA	J. X. Yang,et al."Relative stability of carbides and their effects on the properties of K465 superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 429.1-2(2006):341-347.