The Joining Behavior of Titanium and Q235 Steel Joined by Cold Metal Transfer Joining Technology

doi:10.3390/ma12152413

	The Joining Behavior of Titanium and Q235 Steel Joined by Cold Metal Transfer Joining Technology
	Chang, Jinghuan; Cao, Rui; Yan, Yingjie
刊名	MATERIALS
	2019-08
卷号	12 期号:15
关键词	welding-brazing joining mechanism strength dissimilar metal
DOI	10.3390/ma12152413
英文摘要	Cold metal transfer process is applied to join titanium and Q235 steel with copper filler metal. Scanning electron microscope (SEM), energy dispersive spectrometer (EDS) analysis, micro-hardness tests, and tensile strength test were performed to investigate the joining mechanism and strength of joints. The results show that the stacking order of two base metals affected the joining modes and strength. For top Q235 steel to bottom Ti-TA2 lapped joint, there was no distinct interface reaction layer between the steel base metal and the weld metal; dispersed TiFe2 intermetalics (IMCs) IMCs between the steel base metal and the Ti base metal greatly improved the strength of joint; the tensile force of the joint could reach up to 93% that of steel-steel joint using the same welding parameters. Additionally, the joints were fractured in dimple mode at the steel base metal. For top Ti-TA2 to bottom Q235 steel lapped joint, the increasing volume fraction of Ti-Cu IMCs at the Ti-Cu weld metal interface contributed to the strength of joint degradation. The joints under tensile loading are initiated at the Ti-Cu weld metal interface between the weld metal and Ti base metal, then propagated to weld metal, finally fractured with brittle mode.
资助项目	National Nature Science Foundation of China[51675255][51761027][51265028]
WOS研究方向	Materials Science
语种	英语
出版者	MDPI
WOS记录号	WOS:000482576900074
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31654]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Cao, Rui
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Chang, Jinghuan,Cao, Rui,Yan, Yingjie. The Joining Behavior of Titanium and Q235 Steel Joined by Cold Metal Transfer Joining Technology[J]. MATERIALS,2019,12(15).
APA	Chang, Jinghuan,Cao, Rui,&Yan, Yingjie.(2019).The Joining Behavior of Titanium and Q235 Steel Joined by Cold Metal Transfer Joining Technology.MATERIALS,12(15).
MLA	Chang, Jinghuan,et al."The Joining Behavior of Titanium and Q235 Steel Joined by Cold Metal Transfer Joining Technology".MATERIALS 12.15(2019).