Microstructure regulation of titanium alloy functionally gradient materials fabricated by alternating current assisted wire arc additive manufacturing

doi:10.1016/j.matdes.2022.110731

	Microstructure regulation of titanium alloy functionally gradient materials fabricated by alternating current assisted wire arc additive manufacturing
	Huang, Jiankang1,3 ; Liu, Guangyin 1; Yu, Xiaoquan 1; Wu, Haosheng 1; Huang, Yanqin 1; Yu, Shurong 2; Fan, Ding1
	2022-06
发表期刊	MATERIALS & DESIGN
ISSN	0264-1275
卷号	218
摘要	Using wire arc additive manufacturing (WAAM), an alternating current (AC)-assisted WAAM method was proposed to fabricate a Titanium alloy functionally gradient material. The AC was added at the Ti6Al4V filling wire to regulate the microstructure variation from bottom to top during the deposition process. In this study, scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD) were used to analyze the microstructure change. Transmission electron microscopy (TEM) was used to study the micro-mechanism. The mechanical performance was tested by Vickers hardness and tensile experiments. Results were obtained for the microstructures of different deposition layers with gradient changes. The results showed that 13-lath accumulated around the dislocations, which were hindered by the 13 phase. Grain size and grain character distributions were remarkably different as the AC increased. The maximum hardness was 480 HV when the value of AC was 20 A, and the highest elongation of the deposited layer was 10.22% with a strength of 650.2 MPa when the AC value was 30 A. The effect of the magnetic field generated by the AC on the flow behavior of the molten pool, the gradual change in microstructure, and the solidification behavior of the molten pool are also discussed.(c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/).
关键词	Wire arc additive manufacturing Alternating current Functionally gradient material Electromagnetic stirring
DOI	10.1016/j.matdes.2022.110731
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000806789100005
出版者	ELSEVIER SCI LTD
EI入藏号	20222112141222
EI主题词	3D printers
EI分类号	535.2 Metal Forming ; 541.2 Aluminum Alloys ; 542.3 Titanium and Alloys ; 741.3 Optical Devices and Systems ; 745.1.1 Printing Equipment ; 802.3 Chemical Operations ; 803 Chemical Agents and Basic Industrial Chemicals ; 942.2 Electric Variables Measurements ; 951 Materials Science
来源库	WOS
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	https://ir.lut.edu.cn/handle/2XXMBERH/158648
专题	材料科学与工程学院
通讯作者	Huang, Jiankang
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	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
通讯作者单位	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
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Huang, Jiankang,Liu, Guangyin,Yu, Xiaoquan,et al. Microstructure regulation of titanium alloy functionally gradient materials fabricated by alternating current assisted wire arc additive manufacturing[J]. MATERIALS & DESIGN,2022,218.
APA	Huang, Jiankang.,Liu, Guangyin.,Yu, Xiaoquan.,Wu, Haosheng.,Huang, Yanqin.,...&Fan, Ding.(2022).Microstructure regulation of titanium alloy functionally gradient materials fabricated by alternating current assisted wire arc additive manufacturing.MATERIALS & DESIGN,218.
MLA	Huang, Jiankang,et al."Microstructure regulation of titanium alloy functionally gradient materials fabricated by alternating current assisted wire arc additive manufacturing".MATERIALS & DESIGN 218(2022).