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

doi:10.1016/j.jmapro.2021.05.001

IMR OpenIR

	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
通讯作者	Ma, Yingche(ycma@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn)
	2021-07-01
发表期刊	JOURNAL OF MANUFACTURING PROCESSES
ISSN	1526-6125
卷号	67 页码:253-261
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).
关键词	Interfacial microstructures Residual welding stress Dissimilar joints Ni based superalloys
DOI	10.1016/j.jmapro.2021.05.001
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Manufacturing
WOS记录号	WOS:000658510500002
出版者	ELSEVIER SCI LTD
引用统计	被引频次：8[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/321006/160416
专题	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.