A novel magnetic field assisted powder arc additive manufacturing for Ti60 titanium alloy: Method, microstructure and mechanical properties

doi:10.1016/j.addma.2024.104065

IMR OpenIR

	A novel magnetic field assisted powder arc additive manufacturing for Ti60 titanium alloy: Method, microstructure and mechanical properties
	Kang, Kexin 1,2; Liu, Yibo 1,2; Ren, Huisheng 1,2; Zhang, Qinghua 1,2; Wang, Shiqing 2; Kong, Yina 2; Li, Wenyuan 3; Liu, Jianrong 3; Sun, Qingjie 1,2
通讯作者	Liu, Yibo(ybliu0701@hit.edu.cn) ; Sun, Qingjie(qjsun@hit.edu.cn)
	2024-03-05
发表期刊	ADDITIVE MANUFACTURING
ISSN	2214-8604
卷号	83 页码:15
摘要	Due to the rapid heating-cooling process and unstable keyhole, pore defects are easily formed during the high energy beam-powder additive manufacturing (AM) process, posing great challenges to the high-performance manufacturing of aerospace components. Using an arc with lower energy density as a heat source can effectively avoid these defects, but its matching raw materials are limited to wire. In this paper, a novel magnetic field assisted powder arc additive manufacturing (MFA-PAAM) method has been proposed, which combines arc heat source and powder raw material to achieve dense metal parts. A transverse magnetic field (TMF) was introduced to solve the powder spattering problem which impacts the stability of the PAAM process, by regulating the direction of the arc plasma flow and the arc pressure. The unique melting behavior of the powder under arc heating was captured by a high-speed camera, which can be summarized into two steps: balling and adsorption by the molten pool. And the well-formed and fully dense Ti60 high-temperature titanium alloy wall components were successfully manufactured using the self-developed equipment. The microstructure of the thin-wall component is dominated by basket-weave distributed alpha laths and few beta sheets remaining at their boundaries. A layered periodic distribution along the building direction was observed, which is mainly distinguished from the content and morphology of the beta phase. The average ultimate tensile strength (UTS) and elongation to failure in the travelling direction are 1003.2 MPa and 15.1%, while the average UTS and elongation along the building direction are 1009.3 MPa and 16.6%, respectively. The fracture morphologies in both directions are characterized by ductile fracture. The MFA-PAAM technique shows great potential for fabricating materials that are difficult to be drawn into wires with high efficiency and performance.
关键词	Magnetic field assisted powder arc additive manufacturing Powder spattering problem Powder melting behavior Ti60 high-temperature titanium alloy Microstructure Mechanical properties
资助者	National Science and Technology Major Project ; National Natural Science Founda- tion of China
DOI	10.1016/j.addma.2024.104065
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019 -VII -0004-0144] ; National Natural Science Founda- tion of China[52275320] ; National Natural Science Founda- tion of China[52175299]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:001221473000001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186052
专题	中国科学院金属研究所
通讯作者	Liu, Yibo; Sun, Qingjie
作者单位	1.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China 2.Harbin Inst Technol Weihai, Shandong Prov Key Lab Special Welding Technol, Weihai 264209, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Kang, Kexin,Liu, Yibo,Ren, Huisheng,et al. A novel magnetic field assisted powder arc additive manufacturing for Ti60 titanium alloy: Method, microstructure and mechanical properties[J]. ADDITIVE MANUFACTURING,2024,83:15.
APA	Kang, Kexin.,Liu, Yibo.,Ren, Huisheng.,Zhang, Qinghua.,Wang, Shiqing.,...&Sun, Qingjie.(2024).A novel magnetic field assisted powder arc additive manufacturing for Ti60 titanium alloy: Method, microstructure and mechanical properties.ADDITIVE MANUFACTURING,83,15.
MLA	Kang, Kexin,et al."A novel magnetic field assisted powder arc additive manufacturing for Ti60 titanium alloy: Method, microstructure and mechanical properties".ADDITIVE MANUFACTURING 83(2024):15.