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    Improvement of the biomedical properties of titanium using SMAT and thermal oxidation

    Year: 2014

    Journal: COLLOIDS AND SURFACES B-BIOINTERFACES, Vol. 116, p 658-665, 20150722

    Authors: Wen, Ming; Wen, Cuie; Hodgson, Peter; Li, Yuncang

    Organizations: Deakin Univ, Inst Frontier Mat, Geelong, Vic 3217, Australia; Kunming Inst Precious Met, State Key Lab Adv Technol Comprehens Utilizat Pla, Kunming 650106, Yunnan, Peoples R China; Swinburne Univ Technol, Fac Engn & Ind Sci, Ind Res Inst Swinburne, Hawthorn, Vic 3122, Australia

    Titanium and its alloys are excellent candidates for biomedical implant. However, they exhibit relatively poor tribological properties. In this study, a two-step treatment including surface mechanical attrition treatment (SMAT) combined with thermal oxidation process has been developed to improve the tribological properties and biocompatibility of Ti. Ti after two-step treatment shows excellent wear-resistance and biocompatibility among all Ti samples, which can be ascribed to the highest surface energy, well crystallinity of rutile layer on its surface. Overall, the two-step treatment is a prospective method to produce excellent biomedical Ti materials. (C) 2013 Elsevier B.V. All rights reserved.