Optimal tensile properties of laser powder bed fusion hereditary basket-weave microstructure in additive manufactured Ti6Al4V

doi:10.1016/j.addma.2022.103092

IMR OpenIR

	Optimal tensile properties of laser powder bed fusion hereditary basket-weave microstructure in additive manufactured Ti6Al4V
	Lu, S. L.1,2; Zhang, Z. J.1,2; Liu, R.1; Zhou, X. H.1; Wang, X. G.1; Zhang, B. N.3; Zhao, X. M.3; Eckert, J.1,4,5; Zhang, Z. F.2
通讯作者	Zhang, Z. J.(zjzhang@imr.ac.cn)
	2022-11-01
发表期刊	ADDITIVE MANUFACTURING
ISSN	2214-8604
卷号	59 页码:14
摘要	Post-heat treatments applied to laser powder bed fusion (L-PBF) additive manufactured (AM) Ti6Al4V components aim to achieve good strength-ductility matching through tailoring microstructures, including micro-structural features that span across length scales, such as prior beta phase grains, laths and precipitates. The effects of initial prior beta microstructure and subsequent solution treatment and aging (STA) on mechanical properties have been investigated. In all cases, the increase of solution temperature and aging treatment improve the strength due to solution-strengthening and precipitation-strengthening. It is confirmed that the L-PBF hereditary basket-weave microstructure possesses better tensile properties than other microstructures, with an ultimate tensile strength of 1185 +/- 6 MPa and an elongation of 15.3 +/- 0.3%. The optimal tensile properties stem from the fine structured primary alpha and transformed beta phases in the retained L-PBF prior beta grains, which are both beneficial to improving the work-hardening capacity, as well as enhancing the resistance to crack initiation and propagation. This finding can guide the optimization of mechanical properties for the L-PBF additive manufactured Ti6Al4V components.
关键词	Laser powder bed fusion Ti6Al4V Heat treatment Microstructure Mechanical properties
资助者	Youth Innovation Pro- motion Association of CAS ; National Natural Science Foundation of China (NSFC) ; IMR Innovation Foundation ; KC Wong Education Foundation
DOI	10.1016/j.addma.2022.103092
收录类别	SCI
语种	英语
资助项目	Youth Innovation Pro- motion Association of CAS[2021192] ; National Natural Science Foundation of China (NSFC)[51871223] ; National Natural Science Foundation of China (NSFC)[52130002] ; IMR Innovation Foundation[2021-PY05] ; KC Wong Education Foundation[GJTD-2020-09]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:000848571500001
出版者	ELSEVIER
引用统计	被引频次：34[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/321006/175017
专题	中国科学院金属研究所
通讯作者	Zhang, Z. J.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Xian Bright Laser Technol Co Ltd, Xian 710000, Peoples R China 4.Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria 5.Univ Leoben, Chair Mat Phys, Dept Mat Sci, Jahnstr 12, A-8700 Leoben, Austria
推荐引用方式 GB/T 7714	Lu, S. L.,Zhang, Z. J.,Liu, R.,et al. Optimal tensile properties of laser powder bed fusion hereditary basket-weave microstructure in additive manufactured Ti6Al4V[J]. ADDITIVE MANUFACTURING,2022,59:14.
APA	Lu, S. L..,Zhang, Z. J..,Liu, R..,Zhou, X. H..,Wang, X. G..,...&Zhang, Z. F..(2022).Optimal tensile properties of laser powder bed fusion hereditary basket-weave microstructure in additive manufactured Ti6Al4V.ADDITIVE MANUFACTURING,59,14.
MLA	Lu, S. L.,et al."Optimal tensile properties of laser powder bed fusion hereditary basket-weave microstructure in additive manufactured Ti6Al4V".ADDITIVE MANUFACTURING 59(2022):14.