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Influence of Manufacturing Parameters on the Properties of Electron Beam Melted Ti-Ni Alloy
Ren Dechun1,2; Zhang Huibo1; Zhao Xiaodong3; Wang Fuyu4; Hou Wentao1; Wang Shaogang1; Li Shujun1; Jin Wei1; Yang Rui1
Corresponding AuthorJin Wei(wjin@imr.ac.cn)
2020-08-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume56Issue:8Pages:1103-1112
AbstractElectron 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.
Keywordelectron beam melting Ti-Ni alloy manufacturing parameter microstructure compression property
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences
DOI10.11900/0412.1961.2019.00410
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[No.XDA22010103]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000550617100006
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139847
Collection中国科学院金属研究所
Corresponding AuthorJin Wei
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
4.AVIC Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China
Recommended Citation
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.
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