Effects of solution annealing on the precipitation of dendrite-like carbides during continuous cooling in Alloy 690

doi:10.1016/j.jmrt.2021.09.150

IMR OpenIR

	Effects of solution annealing on the precipitation of dendrite-like carbides during continuous cooling in Alloy 690
	Zhao, Xia 1,2,3; Wang, Min 1,3; Hao, Xian-Chao 1,3; Liu, Hong-Yi 4; Zha, Xiang-Dong 1,3; Gao, Ming 1,3; Ma, Ying-Che 1,3; Liu, Kui 1,3
通讯作者	Wang, Min(minwang@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn)
	2021-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	15 页码:3296-3309
摘要	The precipitation characteristics of intergranular carbides generally have a significant impact on the microstructural homogeneity and properties of Alloy 690. M23C6 carbides with distinct dendritic morphology are found precipitating in the continuously cooled Alloy 690, and this study focuses on the effects of solution heat treatment on the morphology evolution of M(23)C(6)carbides during cooling. Results show that if the solution heat treatment is sufficient enough, carbides tend to precipitate in a dendritic morphology during cooling, otherwise rod-like carbides would be dominant on the grain boundary. The precipitation morphology of carbides basically depends on the critical nucleation radius R* and the relative supersaturation S which is closely related to the solute concentration on the grain boundary. Insufficient solution annealing will leave undissolved original carbides on the grain boundary, which can grow prior to the precipitation of new carbides and consume lots of solute elements in advance. This earlier solute consumption and the consequent element diffusion could prevent the formation of dendritic carbides, and then rod-like carbides form instead. This study will help to regulate the precipitation morphology of grain boundary carbides in Alloy 690 during continuous cooling, so as to obtain a microstructure conducive to properties. (C) 2021 The Author(s). Published by Elsevier B.V.
关键词	Heat treatment Precipitation M23C6 Alloy 690 Continuous cooling
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jmrt.2021.09.150
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51801211]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000707717900009
出版者	ELSEVIER
引用统计	被引频次：1[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/321006/167074
专题	中国科学院金属研究所
通讯作者	Wang, Min; Liu, Kui
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xia,Wang, Min,Hao, Xian-Chao,et al. Effects of solution annealing on the precipitation of dendrite-like carbides during continuous cooling in Alloy 690[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,15:3296-3309.
APA	Zhao, Xia.,Wang, Min.,Hao, Xian-Chao.,Liu, Hong-Yi.,Zha, Xiang-Dong.,...&Liu, Kui.(2021).Effects of solution annealing on the precipitation of dendrite-like carbides during continuous cooling in Alloy 690.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,15,3296-3309.
MLA	Zhao, Xia,et al."Effects of solution annealing on the precipitation of dendrite-like carbides during continuous cooling in Alloy 690".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 15(2021):3296-3309.