Formation of a protective oxide layer with enhanced wear and corrosion resistance by heating the TiZrHfNbFe0.5 refractory multi-principal element alloy at 1, 000 °C. (1st March 2023)

• Record Type: Journal Article
• Authors: Hua, Nengbin; Qian, Zhongya; Lin, Bozhuan; Liao, Zhenlong; Wang, Qianting; Dai, Pinqiang; Fang, Hui; Liaw, Peter K.
• Is Part Of: Scripta materialia. Number 225(2023)
• Publication Date: 2023-03-01
• Subjects: Metallic biomaterials -- Refractory multi-principal element alloy -- Wear resistance -- Corrosion resistance -- Bioactivity; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2022.115165
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: In the present work, the effects of oxidation treatment on the structures and properties of a novel TiZrHfNbFe0.5 refractory multi-principal element alloy (MPEA) were reported. It is found that the TiZrHfNbFe0.5 MPEA exhibits a sluggish oxidation rate at 1, 000 °C, which is attributed to the formation of a compact and stable oxide layer consisting of complex metallic oxides like Ti2 ZrO6 and Fe2 O3 . In comparison with the as-cast MPEA, the microhardness of the 1, 000 °C oxidized MPEA significantly increases by 1.6 times, resulting in a two orders of magnitude higher wear resistance. Furthermore, the bio-corrosion resistance, hydrophilicity, and bioactivity of the MPEA are remarkably enhanced by the 1, 000 °C oxidation. In short, the formation of a highly protective oxide layer with enhanced wear and corrosion resistance by heating the TiZrHfNbFe0.5 MPEA at 1, 000 °C, which shows promising prospects for biomedical applications. Graphical abstract: Image, graphical abstract