Defect-healing of a laser-powder bed fusion Ti6Al4V alloy via electro-assisted micro-forging

doi:10.1016/j.matchar.2023.113298

IMR OpenIR

	Defect-healing of a laser-powder bed fusion Ti6Al4V alloy via electro-assisted micro-forging
	Meng, L. X.1,2; Yang, H. J.1,3; Wang, S. G.4; Ji, H. B.1,2; Shao, X. H.2,4; Zhang, Z. J.1,2; Ren, D. C.1,2; Zhang, X.1,2; Yang, J. B.1,2; An, X. H.5; Pei, Y. T.6; De Hosson, J. Th. M.1,7; Yang, R.1,2; Zhang, Z. F.1,2
通讯作者	Yang, H. J.(yanghj@szlab.ac.cn) ; De Hosson, J. Th. M.(j.t.m.de.hosson@rug.nl) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2023-11-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	205 页码:15
摘要	In recent years, the concept of hybrid manufacturing has been proposed to heal the defects in additive manu-factured (AM) materials, taking advantage of both the AM technique and additional secondary processes such as hot forging. However, the healing mechanism of defects, as well as the relationship between defects elimination and microstructure evolution need to be further studied. In this work, we designed laser-powder bed fusion (L-PBF) Ti6Al4V samples with high initial porosity, making it easier to trace the pores during the quasi in-situ X-ray tomography (XRT) observation. The samples were conducted hot forging by Gleeble-3800 system, which is named as electro-assisted micro-forging (EAMF) treatment, considering the characteristic of this process is to directly electrify the specimen to generate Joule heat. The results show that the porosity was effectively reduced by combining effects of electric current, heat energy and compressive stress during EAMF. Simultaneous enhancement of strength and ductility was realized. The defect-healing mechanism that comprising various stages was comprehensively disclosed. The competitive relationship between defect-healing and microstructure coarsening was revealed, which has a guiding effect on the subsequent optimization of process parameters.
关键词	Laser-powder bed fusion Ti6Al4V Electro-assisted micro-forging Defect-healing Mechanical properties
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; CAS Interdisciplinary Innovation Team ; KC Wong Education Foundation ; Australian Research Council ; University of Sydney under the Robinson Fellowship Scheme
DOI	10.1016/j.matchar.2023.113298
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51975552] ; National Natural Science Foundation of China[51230002] ; Natural Science Foundation of Liaoning Province[2020 -MS -007] ; CAS Interdisciplinary Innovation Team[JCTD-2020-10] ; KC Wong Education Foundation[GJTD-2020-09] ; Australian Research Council[DP230101228] ; University of Sydney under the Robinson Fellowship Scheme
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001106833400001
出版者	ELSEVIER SCIENCE INC
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/321006/177398
专题	中国科学院金属研究所
通讯作者	Yang, H. J.; De Hosson, J. Th. M.; Zhang, Z. F.
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Suzhou Lab, Suzhou 215028, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia 6.Univ Groningen, Dept Adv Prod Engn, Engn & Technol Inst Groningen, NL-9747 AG Groningen, Netherlands 7.Univ Groningen, Zernike Inst Adv Mat, Dept Appl Phys, NL-9747 AG Groningen, Netherlands
推荐引用方式 GB/T 7714	Meng, L. X.,Yang, H. J.,Wang, S. G.,et al. Defect-healing of a laser-powder bed fusion Ti6Al4V alloy via electro-assisted micro-forging[J]. MATERIALS CHARACTERIZATION,2023,205:15.
APA	Meng, L. X..,Yang, H. J..,Wang, S. G..,Ji, H. B..,Shao, X. H..,...&Zhang, Z. F..(2023).Defect-healing of a laser-powder bed fusion Ti6Al4V alloy via electro-assisted micro-forging.MATERIALS CHARACTERIZATION,205,15.
MLA	Meng, L. X.,et al."Defect-healing of a laser-powder bed fusion Ti6Al4V alloy via electro-assisted micro-forging".MATERIALS CHARACTERIZATION 205(2023):15.