Microstructure evolution and mechanical properties of 316H weld metal during aging

doi:10.1080/02670836.2020.1743597

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructure evolution and mechanical properties of 316H weld metal during aging
	Wei, Shitong 1; Zhao, Langlang 3,4; Gao, Dianbao 2; Lu, Shanping 4
刊名	MATERIALS SCIENCE AND TECHNOLOGY
	2020-05-02
卷号	36 期号:7 页码:793-804
关键词	Tungsten inert gas welding aging treatment delta-ferrite M23C6 sigma phase mechanical property
ISSN号	0267-0836
DOI	10.1080/02670836.2020.1743597
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
英文摘要	A standard 316H welding wire was used to obtain 6% delta-ferrite in the weld metal by the automatic tungsten inert gas welding. The effect of aging time at 750 degrees C on microstructure and mechanical properties of the weld metal were analysed. The results showed that as the aging time increased, the delta-ferrite fraction decreased, and finally, delta-ferrite was no longer seen, the M23C6 fraction first increased and then decreased, and the sigma phase fraction increased. Finally, the fractions of M23C6 and sigma phase kept stable, but the size increased. Accordingly, as the aging time increased, the yield and tensile strengths first decreased significantly, then increased obviously and finally decreased slightly again, while the elongation and impact energy decreased all the time.
资助项目	Opening Foundation of Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences[2019NMSAKF04] ; China Institute of Atomic Energy[2016-DGB-I-KYSC-0024]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000524078800001
资助机构	Opening Foundation of Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences ; China Institute of Atomic Energy
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137761]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang, Peoples R China 2.China First Heavy Ind, Nucl Power & Petrochem Business Grp, Dalian, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wei, Shitong,Zhao, Langlang,Gao, Dianbao,et al. Microstructure evolution and mechanical properties of 316H weld metal during aging[J]. MATERIALS SCIENCE AND TECHNOLOGY,2020,36(7):793-804.
APA	Wei, Shitong,Zhao, Langlang,Gao, Dianbao,&Lu, Shanping.(2020).Microstructure evolution and mechanical properties of 316H weld metal during aging.MATERIALS SCIENCE AND TECHNOLOGY,36(7),793-804.
MLA	Wei, Shitong,et al."Microstructure evolution and mechanical properties of 316H weld metal during aging".MATERIALS SCIENCE AND TECHNOLOGY 36.7(2020):793-804.