Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy

doi:10.11900/0412.1961.2019.00410

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	Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy
	Ren Dechun 1,4; Zhang Huibo 1; Zhao Xiaodong 2; Wang Fuyu 3; Hou Wentao 1; Wang Shaogang 1; Li Shujun 1; Jin Wei 1; Yang Rui 1
刊名	ACTA METALLURGICA SINICA
	2020-08-11
卷号	56 期号:8 页码:1103-1112
关键词	electron beam melting Ti-Ni alloy manufacturing parameter microstructure compression property
ISSN号	0412-1961
DOI	10.11900/0412.1961.2019.00410
通讯作者	Jin Wei(wjin@imr.ac.cn)
英文摘要	Electron beam melting (EBM) is one of the additive manufacturing technologies which can be used to fabricate the complex structure and shape samples. Until now, there are few literatures published about the properties of Ti-Ni samples produced by EBM. In this work, the influence of two important manufacturing parameters of focus offset (FO) and speed function (SF) on the density, phase content and transformation behavior, microstructure and mechanical properties was investigated for the equiatomic Ti-Ni shape memory alloy fabricated by EBM used DSC, XRD, SEM, TEM and electronic universal testing machine. The results showed that all the Ti-Ni samples had a high relative density beyond than 97% for fabricated by different combinations of FO and SF in the selected range. The corresponding phase transformation temperatures for all the Ti-Ni samples fabricated by EBM were higher than the prealloyed Ti-Ni powder, due to the effect of evaporation of Ni element higher than that of the formation of Nirich Ti,Ni phase during the quickly melting and solidification process. On the other hand, the EBM manufacturing parameters of FO and SF had limited influence on the phase contents, phase transformation temperatures and Vickers hardness. Due to the feature of the EBM fabricating method, the different types of defects would be introduced in the Ti-Ni solid samples. Though all the samples had similar high relative density, the performance of the compression behavior were shown great difference, and the crack defect had the larger effect than the gas and lack-of fusion porosities on the compression fracture stress and strain.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[No.XDA22010103]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000550617100006
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139848]
专题	金属研究所_中国科学院金属研究所
通讯作者	Jin Wei
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 3.AVIC Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ren Dechun,Zhang Huibo,Zhao Xiaodong,et al. Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy[J]. ACTA METALLURGICA SINICA,2020,56(8):1103-1112.
APA	Ren Dechun.,Zhang Huibo.,Zhao Xiaodong.,Wang Fuyu.,Hou Wentao.,...&Yang Rui.(2020).Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy.ACTA METALLURGICA SINICA,56(8),1103-1112.
MLA	Ren Dechun,et al."Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy".ACTA METALLURGICA SINICA 56.8(2020):1103-1112.