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  Microstructures and wear properties of surface treated Ti-36Nb–2Ta–3Zr–0.35O alloy by electron beam melting (EBM)

Chen, Z., Liu, Y., Wu, H., Zhang, W., Guo, W., Tang, H., et al. (2015). Microstructures and wear properties of surface treated Ti-36Nb–2Ta–3Zr–0.35O alloy by electron beam melting (EBM). Applied Surface Science, 357(B), 2347-2354. doi:10.1016/j.apsusc.2015.09.240.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002A-5F1C-D Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002A-5F1D-B
Genre: Journal Article

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 Creators:
Chen, Zijin1, Author           
Liu, Yong1, Author           
Wu, Hong1, Author           
Zhang, Weidong1, Author           
Guo, Wei2, Author           
Tang, Huiping3, Author           
Liu, Nan3, Author           
Affiliations:
1State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China, ou_persistent22              
2Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              
3State Key Laboratory of Porous Metals Materials, Northwest Institute for Non-Ferrous Metal Research, Xi'an 710016, PR China, ou_persistent22              

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Free keywords: Electron beam melting; Gum metal; Microstructure; Surface modification; Wear resistance
 Abstract: Ti-36Nb-2Ta-3Zr-0.35O (wt.%) (TNTZO, also called gum metal) alloy was surface treated by electron beam melting (EBM), in order to improve wear properties. The microstructures and phase constitutions of the treated surface were characterized by optical microscopy (OM), scanning electron microscopy (SEM), grazing incidence X-ray diffraction (GIXD) and electron backscattered diffraction (EBSD). The results showed that the martensitic phase and dendrites were formed from the β phase alloy after the EBM treatment, and microstructures in the surface changed with the processing parameters. Compared with the untreated TNTZO alloy, the surface modified TNTZO alloys exhibited higher nano-hardness, 8.0. GPa, and the wear loss was also decreased apparently. The samples treated at a scanning speed of 0.5. m/s exhibited the highest wear resistance due to the fast cooling rate and the precipitation of acicular α″ phase. The relationship between the wear property and the surface microstructure of TNTZO alloy was discussed. © 2015 Elsevier B.V.

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Language(s): eng - English
 Dates: 2015-06-152015-12-01
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.apsusc.2015.09.240
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Title: Applied Surface Science
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 357 (B) Sequence Number: - Start / End Page: 2347 - 2354 Identifier: ISSN: 0169-4332
CoNE: https://pure.mpg.de/cone/journals/resource/954928576736