Effect of cutting process on the residual stress and fatigue life of the welded joint treated by ultrasonic impact treatment

doi:10.1016/j.ijfatigue.2020.105998

IMR OpenIR

	Effect of cutting process on the residual stress and fatigue life of the welded joint treated by ultrasonic impact treatment
	Liang, Hang 1,2; Kan, Ying 3; Chen, Huaining 3; Zhan, Rui 1,2; Liu, Xiuguo 1,2; Wang, Dongpo 1,2
通讯作者	Wang, Dongpo(wangdp@tju.edu.cn)
	2021-02-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	143 页码:12
摘要	To obtain the final shape and ensure quality in the manufacturing of welded structural components, a cutting process is usually applied to remove the weld edges. Comparative tests were conducted with replicas of non-load-carrying cruciform joints in the as-welded and ultrasonic impact peened conditions, which were before or after cutting process at the two ends. Those contained the measurement of three types of residual stress distributions of various weld lengths by the cut-release method and relevant fatigue tests. The locations of fatigue crack initiation and fracture surfaces were also determined. The experimental results demonstrated that in the welded joint peened by the ultrasonic impact treatment, the welding residual stress component among the superimposed residual stresses relaxes after cutting. Owing to the original compressive welding residual stress in the peened welded joint, the cutting process has a distinct effect on the change of the superimposed residual stress distribution near the cutting edges. Furthermore, the cutting process reduces the fatigue life improvement of the peened welded joint and transfers the positions of the fatigue crack source. For the fatigue life improvement of welded structures, arranging ultrasonic impact treatment after the cutting process is better. Besides, the compressive superimposed residual stress in the UIT-welded joint will not relax completely under cyclic fatigue loading.
关键词	Cutting process Residual stress Fatigue life Welded joints Ultrasonic impact treatment (UIT)
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ijfatigue.2020.105998
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771135]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000597144300001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：34[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/321006/158685
专题	中国科学院金属研究所
通讯作者	Wang, Dongpo
作者单位	1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China 2.Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110000, Peoples R China
推荐引用方式 GB/T 7714	Liang, Hang,Kan, Ying,Chen, Huaining,et al. Effect of cutting process on the residual stress and fatigue life of the welded joint treated by ultrasonic impact treatment[J]. INTERNATIONAL JOURNAL OF FATIGUE,2021,143:12.
APA	Liang, Hang,Kan, Ying,Chen, Huaining,Zhan, Rui,Liu, Xiuguo,&Wang, Dongpo.(2021).Effect of cutting process on the residual stress and fatigue life of the welded joint treated by ultrasonic impact treatment.INTERNATIONAL JOURNAL OF FATIGUE,143,12.
MLA	Liang, Hang,et al."Effect of cutting process on the residual stress and fatigue life of the welded joint treated by ultrasonic impact treatment".INTERNATIONAL JOURNAL OF FATIGUE 143(2021):12.