Interfacial reaction mechanism of TiBw/Ti6Al4V composites and Inconel 718 alloys by GTAW heat transmission

doi:10.1007/s11431-019-1452-8

IMR OpenIR

	Interfacial reaction mechanism of TiBw/Ti6Al4V composites and Inconel 718 alloys by GTAW heat transmission
	Gao YaNan 2; Huang LuJun 1,2; Sun Yuan 3; An Qi 2; Zhang Jie 2; Geng Lin 1,2
通讯作者	Huang LuJun(huanglujun@hit.edu.cn) ; Sun Yuan(yuansun@imr.ac.cn)
	2019-11-07
发表期刊	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN	1674-7321
页码	9
摘要	A good joint of TiBw/Ti6Al4V composites and Inconel 718 alloys was obtained by Gas Tungsten Arc Welding (GTAW) heat transmission. The interfacial reaction mechanism of joint was investigated and analyzed in details. Owing to the heat input applied on the surface of TiBw/Ti6Al4V composites, a solid-state reaction layer appeared at the interface of TiBw/Ti6Al4V composites to Inconel 718 alloys. The thickness of the reaction layer was obviously increased with increasing heat input. Developing of reaction layer mainly depended on the diffusion of elements of Ti and Ni through the interface during welding to form solid solutions and intermetallic compounds (IMCs). The reaction layer can be divided into Ti-rich zone (layer 2) and Ni-rich zone (layer 1). In Ni-rich zone, relatively coarse dendrites were the predominant, however, more brittle IMCs like Ti2Ni were found in the Ti-rich zone. Micro hardness of reaction layer was much higher than that of base metal. While a slight decrease of hardness was found between Ti-rich zone and Ni-rich zone due to the formation of TiNi.
关键词	TiBw Ti6Al4V composites Inconel 718 alloys interfacial reaction heat transmission microstructures
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1007/s11431-019-1452-8
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFB0703100] ; National Natural Science Foundation of China[51822103] ; National Natural Science Foundation of China[51801206] ; National Natural Science Foundation of China[51731009] ; Fundamental Research Funds for the Central Universities[HIT.BRE-TIV.201902]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:000496263800003
出版者	SCIENCE PRESS
引用统计	被引频次：6[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/321006/137088
专题	中国科学院金属研究所
通讯作者	Huang LuJun; Sun Yuan
作者单位	1.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China 2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Gao YaNan,Huang LuJun,Sun Yuan,et al. Interfacial reaction mechanism of TiBw/Ti6Al4V composites and Inconel 718 alloys by GTAW heat transmission[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2019:9.
APA	Gao YaNan,Huang LuJun,Sun Yuan,An Qi,Zhang Jie,&Geng Lin.(2019).Interfacial reaction mechanism of TiBw/Ti6Al4V composites and Inconel 718 alloys by GTAW heat transmission.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,9.
MLA	Gao YaNan,et al."Interfacial reaction mechanism of TiBw/Ti6Al4V composites and Inconel 718 alloys by GTAW heat transmission".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2019):9.