Effect of Residual Stress on Reheat Cracking Susceptibility of Super304H Austenitic Stainless Steel Weld Metal

IMR OpenIR

	Effect of Residual Stress on Reheat Cracking Susceptibility of Super304H Austenitic Stainless Steel Weld Metal
	Xiao Xiaopeng 1,2; Dong Wenchao 1; Li Dianzhong 1; Li Yiyi 1,3; Lu Shanping 1
通讯作者	Lu Shanping(shplu@imr.ac.cn)
	2023-06-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1875-5372
卷号	52 期号:6 页码:2093-2102
摘要	The effect of residual stress on the reheat cracking susceptibility of Super304H austenitic stainless steel weld metal by the pre-compressed CT specimen method was studied. The plastic strain and dislocation density distribution of weld metal under different residual stresses were analyzed by ABAQUS simulation combined with EBSD characterization. The effect of residual stress on the reheat cracking susceptibility was explained from the aspect of stress-induced precipitation. The results show that CT specimens with high pre-compression force have higher residual stress and are more likely to generate cracks. With increasing the residual stress, the tensile strength of the specimen is decreased gradually. The high residual stress region of the CT specimen closed to the U-shaped notch has higher dislocation density and subgrain, promoting the precipitation of the small intragranular phase, which makes the intragranular hardening more serious and the easy occurrence of reheat cracks.
关键词	reheat cracking residual stress austenitic stainless steel weld metal dislocation density
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001028537300010
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178790
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, Shenyang Natl Lab Mat Sci, 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, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xiao Xiaopeng,Dong Wenchao,Li Dianzhong,et al. Effect of Residual Stress on Reheat Cracking Susceptibility of Super304H Austenitic Stainless Steel Weld Metal[J]. RARE METAL MATERIALS AND ENGINEERING,2023,52(6):2093-2102.
APA	Xiao Xiaopeng,Dong Wenchao,Li Dianzhong,Li Yiyi,&Lu Shanping.(2023).Effect of Residual Stress on Reheat Cracking Susceptibility of Super304H Austenitic Stainless Steel Weld Metal.RARE METAL MATERIALS AND ENGINEERING,52(6),2093-2102.
MLA	Xiao Xiaopeng,et al."Effect of Residual Stress on Reheat Cracking Susceptibility of Super304H Austenitic Stainless Steel Weld Metal".RARE METAL MATERIALS AND ENGINEERING 52.6(2023):2093-2102.