Secondary Precipitation Behavior of Nitride in the Electro-slag Remelted Structure of Alloy 690

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	Secondary Precipitation Behavior of Nitride in the Electro-slag Remelted Structure of Alloy 690
	Wang, Min ; Chen, Bo ; Hao, Xian-Chao ; Ma, Ying-Che ; Liu, Kui
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2017-08-01
卷号	30 期号:8 页码:771-780
关键词	Alloy 690 ESR Nitride Precipitation
ISSN号	1006-7191
通讯作者	Ma, YC (reprint author), Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China.
中文摘要	The precipitation and evolution of secondary nitrides (S-nitrides) in the Alloy 690 electro-slag remelted (ESR) structure were investigated. Experimental results indicate that S-nitrides precipitated in the interdendritic region of the ESR structure at temperatures higher than 1100 degrees C. S-nitrides could spread throughout the entire interdendritic area after sufficient exposure, and they were more numerous and much finer than primary nitrides. Furthermore, after studying the evolution of S-nitride particles at 1100, 1200 and 1300 degrees C, it was determined that the precipitation of S-nitrides was controlled by the diffusion of nitrogen. In addition, by investigating the elemental segregation of ESR structure and calculating critical Ti concentrations, S-nitride precipitation was found to be thermodynamically inevitable in the Alloy 690 ESR structure.
学科主题	Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	Chinese Academy of Sciences Innovation Foundation [CXJJ14-M44]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78028]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Wang, Min,Chen, Bo,Hao, Xian-Chao,et al. Secondary Precipitation Behavior of Nitride in the Electro-slag Remelted Structure of Alloy 690[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2017,30(8):771-780.
APA	Wang, Min,Chen, Bo,Hao, Xian-Chao,Ma, Ying-Che,&Liu, Kui.(2017).Secondary Precipitation Behavior of Nitride in the Electro-slag Remelted Structure of Alloy 690.ACTA METALLURGICA SINICA-ENGLISH LETTERS,30(8),771-780.
MLA	Wang, Min,et al."Secondary Precipitation Behavior of Nitride in the Electro-slag Remelted Structure of Alloy 690".ACTA METALLURGICA SINICA-ENGLISH LETTERS 30.8(2017):771-780.