Effect of Ni content on microstructure and mechanical properties evolutions of 9Cr high Si heat resistant steel deposited metals

doi:10.1016/j.ijpvp.2024.105201

IMR OpenIR

	Effect of Ni content on microstructure and mechanical properties evolutions of 9Cr high Si heat resistant steel deposited metals
	Yu, Tongtong 1,2,3; Wei, Shitong 1,3; Lu, Shanping 1,3
通讯作者	Wei, Shitong(stwei@imr.ac.cn) ; Lu, Shanping(shplu@imr.ac.cn)
	2024-06-01
发表期刊	INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
ISSN	0308-0161
卷号	209 页码:13
摘要	This work presents the effect of Ni content on the morphology of microstructure and changes of mechanical properties of high Si 9Cr heat resistant steel deposited metals with different states: as-welded, as-post weld heat treated (750 degrees C/2.5 h) and as-aged (550 degrees C/3000 h). With the increase of Ni content, the martensitic laths are refined improving the overall mechanical properties. delta ferrite deteriorates the impact toughness. During aging process, Ni facilitates the formation of M6X. Therefore the overall mechanical properties of deposited metal decreases as the Ni content increases after long-term aging owing to the formation of chain-like precipitates consisted mainly of M6X. The process of post weld heat treatment improves the negative effect of small-sized delta ferrite on impact toughness.
关键词	9Cr heat resistant steel Ni content Tensile strength Impact toughness delta ferrite M6X
资助者	National Key Research and Development Program of China ; LingChuang Research Project of China National Nuclear Corporation ; China Institute of Atomic Energy
DOI	10.1016/j.ijpvp.2024.105201
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFA0702902] ; LingChuang Research Project of China National Nuclear Corporation ; China Institute of Atomic Energy[E141L803J1]
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary ; Engineering, Mechanical
WOS记录号	WOS:001239489400001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[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/321006/186837
专题	中国科学院金属研究所
通讯作者	Wei, Shitong; Lu, Shanping
作者单位	1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Yu, Tongtong,Wei, Shitong,Lu, Shanping. Effect of Ni content on microstructure and mechanical properties evolutions of 9Cr high Si heat resistant steel deposited metals[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,2024,209:13.
APA	Yu, Tongtong,Wei, Shitong,&Lu, Shanping.(2024).Effect of Ni content on microstructure and mechanical properties evolutions of 9Cr high Si heat resistant steel deposited metals.INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,209,13.
MLA	Yu, Tongtong,et al."Effect of Ni content on microstructure and mechanical properties evolutions of 9Cr high Si heat resistant steel deposited metals".INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING 209(2024):13.