Effect of Carbon Content on the Creep Rupture Properties and Microstructure of 316H Weld Metals

doi:10.1007/s40195-020-01180-3

IMR OpenIR

	Effect of Carbon Content on the Creep Rupture Properties and Microstructure of 316H Weld Metals
	Zhao, Langlang 1,2,3; Wei, Shitong 1; Gao, Dianbao 4; Lu, Shanping 3
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
	2021-02-05
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	11
摘要	Two types of 316 butt welds with carbon contents of 0.016% and 0.062% have been produced using the gas tungsten arc welding process. The delta-ferrite content decreased from 7.2 to 2.8% in volume as the carbon content increased. The creep-rupture strength and creep ductility of the two types of weld metals have been measured at 550 celcius over the stress range of 290-316 MPa and at 600 celcius over 230-265 MPa. The microstructure change and precipitation behavior of the weld metals were observed and related to the creep rupture properties. The creep rupture strength of the C2 (0.062% C) weld metal was higher than that of the C1 (0.016% C) weld metal at both 550 celcius and 600 celcius. At 550 celcius, as the decrease in the applied stress, the difference of the creep-rupture life between the two weld metals diminished due to the higher depletion rate of carbon by precipitation of M23C6 in the C2 weld metal, while at 600 celcius, the difference enlarged due to the massive precipitation of sigma phase and extensive crack formation and propagation along sigma/austenite boundaries in the C1 weld metal. For both the C1 and C2 weld metal, the decrease in ductility was adverse with the transformation percentage and related to products of the delta-ferrite transformation.
关键词	316 stainless steel weld metal Creep rupture properties δ -ferrite M23C6 σ phase
资助者	Opening Foundation of CAS Key Laboratory of Nuclear Material and Safety Assessment ; China Institute of Atomic Energy
DOI	10.1007/s40195-020-01180-3
收录类别	SCI
语种	英语
资助项目	Opening Foundation of CAS Key Laboratory of Nuclear Material and Safety Assessment[2019NMSAKF04] ; China Institute of Atomic Energy[2016-DGB-I-KYSC-0024]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000615154200001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：5[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/321006/159178
专题	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, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.China First Heavy Ind, Nucl Power & Petrochem Business Grp, 1 Miangang Rd, Dalian 116113, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Langlang,Wei, Shitong,Gao, Dianbao,et al. Effect of Carbon Content on the Creep Rupture Properties and Microstructure of 316H Weld Metals[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:11.
APA	Zhao, Langlang,Wei, Shitong,Gao, Dianbao,&Lu, Shanping.(2021).Effect of Carbon Content on the Creep Rupture Properties and Microstructure of 316H Weld Metals.ACTA METALLURGICA SINICA-ENGLISH LETTERS,11.
MLA	Zhao, Langlang,et al."Effect of Carbon Content on the Creep Rupture Properties and Microstructure of 316H Weld Metals".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):11.