Tribological behaviors of tantalum prepared by SPS under different loads.

Purpose: Tantalum is a kind of metal material with moderate hardness, high ductility, small thermal expansion coefficient, excellent corrosion resistance and outstanding biocompatibility. The purpose of this study is that its tribological performance could be tested and analyzed so as to use it in different fields. Design/methodology/approach: The friction resistance of a-Ta under dry friction conditions was tested at different roads. The relationships between load and friction coefficient, wear rate and two-dimensional shape of wear scars were studied. Findings: The stable Ta2O5 film with lubrication effect was generated in the process of friction. And, the larger the test load, the more Ta2O5 would be generated. Originality/value: This work lays a theoretical foundation for tantalum as an excellent wear-resistant material. Peer review: The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2023-0047/ [ABSTRACT FROM AUTHOR]