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Tribological performance of Ti6Al4V at elevated temperatures fabricated by electron beam powder bed fusion
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå, Sweden.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå, Sweden. (PTW)ORCID iD: 0000-0003-3772-4371
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå, Sweden.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå, Sweden.
2021 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 153, article id 106658Article in journal (Refereed) Published
Abstract [en]

Electron beam powder bed fusion (EBPBF) is a beneficial processing route to fabricate Ti6Al4V alloy for aerospace applications due to its relatively low lead time and the possibility of topology optimization. The dry sliding wear behavior of EBPBF-Ti6Al4V against steel- and alumina-counterballs from room temperature (RT) to 500 °C was investigated to evaluate the influence of EBPBF processing and microstructure on the wear properties for broadening the application criteria of this lightweight alloy. The wear tests revealed that the wear rate decreased with increasing temperature due to formation of stable oxide glaze layer. This study reveals elevated temperature sliding wear behavior, wear mechanisms and microstructural changes below the wear track of EBPBF Ti6Al4V alloy against steel and alumina counterbodies. 

Place, publisher, year, edition, pages
2021. Vol. 153, article id 106658
Keywords [en]
Electron beam powder bed fusion, Wear properties, Ti6Al4V, High temperature tribology, Additive manufacturing, Aerospace
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:hv:diva-16037DOI: 10.1016/j.triboint.2020.106658ISI: 000582755900089Scopus ID: 2-s2.0-85091248818OAI: oai:DiVA.org:hv-16037DiVA, id: diva2:1501614
Funder
Swedish Foundation for Strategic Research , RIF14–0083Available from: 2020-11-17 Created: 2020-11-17 Last updated: 2021-02-12Bibliographically approved

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Neikter, Magnus

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