Effects of heat treatments on the microstructure of IN792 alloy

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	Effects of heat treatments on the microstructure of IN792 alloy
	J. X. Yang; Q. Zheng; H. Y. Zhang; X. F. Sun; H. R. Guan; Z. Q. Hu
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:4-5 页码:1016-1021
摘要	The microstructure of IN792 alloy were investigated at the as-cast state, annealed state at 845 degrees C for 24 It, HS1220 and HS1120 heat treatment states (the material was solution heat treated at 1220 and 1120 degrees C, respectively, followed by a two-stage ageing process with 4 h at 1080 degrees C and 24 h at 845 degrees C, which were named HS1220 and HS1120, respectively). The incipient points of eutectic and solution temperature of carbide are 1230 and 1260 degrees C, respectively, which are measured by metallographic examination. Chinese script MC-type carbides, rose-shaped gamma'/gamma eutectic and cubic gamma' phase are observed in the as-cast IN792 alloy. The annealed microstructure is the same as that of as-cast alloy because the annealing treatment only removes the residual cast stress. After HS1120 solution treatment, MC-type carbides and rose-shaped gamma'/gamma eutectic partly dissolves into gamma matrix, and M(23)C(6) carbide that has a cube-cube orientation relationship with gamma matrix forms near gamma'/gamma eutectic and MC-type carbides. After HS1220 solution treatment, rose-shaped gamma'/gamma eutectic completely dissolves into gamma matrix, but morphology of carbides does not change. The subsequent aging treatments make gamma' phase arrange regularly, and induce re-precipitation of profuse fine gamma' particles throughout gamma matrix channels. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[yang, jinxia; zheng, qi; zhang, hongyu; sun, xiaofeng; guan, hengrong; hu, zhuangqi] chinese acad sci, superalloys div, inst met res, shenyang 110016, peoples r china.;yang, jx (reprint author), chinese acad sci, superalloys div, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;jxyang@imr.ac.cn
关键词	Superalloy Heat Treatment Carbides Gamma ' Phase Nickel-based Superalloys Ni-base Superalloy K465 Superalloy Phase Carbide
URL	查看原文
WOS记录号	WOS:000273983900021
引用统计	被引频次：27[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/321006/31636
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,H. Y. Zhang,et al. Effects of heat treatments on the microstructure of IN792 alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(4-5):1016-1021.
APA	J. X. Yang,Q. Zheng,H. Y. Zhang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2010).Effects of heat treatments on the microstructure of IN792 alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(4-5),1016-1021.
MLA	J. X. Yang,et al."Effects of heat treatments on the microstructure of IN792 alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.4-5(2010):1016-1021.