Interfacial characteristics and residual welding stress distribution of K4750 and Hastelloy X dissimilar superalloys joints

doi:10.1016/j.jmapro.2021.05.001

CORC > 金属研究所 > 中国科学院金属研究所

	Interfacial characteristics and residual welding stress distribution of K4750 and Hastelloy X dissimilar superalloys joints
	Xie, Jilin 1,2; Ma, Yingche 2; Wang, Min 2; Li, Haoze 2; Fang, Naiwen 3; Liu, Kui 2
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2021-07-01
卷号	67 页码:253-261
关键词	Interfacial microstructures Residual welding stress Dissimilar joints Ni based superalloys
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2021.05.001
通讯作者	Ma, Yingche(ycma@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn)
英文摘要	Gas tungsten arc welding (GTAW) method was employed to join a newly developed cast superalloy K4750 with Hastelloy X by using K4750 and Hastelloy X filler metals (FMs), respectively. Thereby we obtained two kinds of interfaces namely K4750 base metal (BM) and Hastelloy X FM, and K4750 FM and Hastelloy X BM. The elemental distribution, interfacial characteristics, and the residual welding stress of the dissimilar joints were investigated by electron probe micro analyzer (EPMA), electron backscattered diffraction (EBSD), and section technique, respectively. The results showed that the elemental distribution across both interfaces were varied significantly. And the composition segregation regions were identified in both interfaces but the segregation extent was different. Epitaxial growth was clearly observed in both interfaces. The distribution of the residual welding stress across the joint exhibited that the highest tension stress area in both as-welded joints was located at the joint heat affected zone (HAZ). The residual welding stress in the joint with Hastelloy X FM was significantly relieved through post weld heat treatment (PWHT).
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000658510500002
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160415]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ma, Yingche; Liu, Kui
作者单位	1.Nanchang Hangkong Univ, Jiangxi Key Lab Forming & Joining Technol Aerosp, Nanchang 330063, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Harbin Welding Inst Ltd Co, Harbin 150028, Peoples R China
推荐引用方式 GB/T 7714	Xie, Jilin,Ma, Yingche,Wang, Min,et al. Interfacial characteristics and residual welding stress distribution of K4750 and Hastelloy X dissimilar superalloys joints[J]. JOURNAL OF MANUFACTURING PROCESSES,2021,67:253-261.
APA	Xie, Jilin,Ma, Yingche,Wang, Min,Li, Haoze,Fang, Naiwen,&Liu, Kui.(2021).Interfacial characteristics and residual welding stress distribution of K4750 and Hastelloy X dissimilar superalloys joints.JOURNAL OF MANUFACTURING PROCESSES,67,253-261.
MLA	Xie, Jilin,et al."Interfacial characteristics and residual welding stress distribution of K4750 and Hastelloy X dissimilar superalloys joints".JOURNAL OF MANUFACTURING PROCESSES 67(2021):253-261.