Characteristics of oxide films on Ti-(10–75)Ta alloys and their corrosion performance in an aerated Hank's balanced salt solution

S Mendis; W Xu; HP Tang; LA Jones; D Liang; R Thompson; P Choong; M Brandt; M Qian

Journal article

Characteristics of oxide films on Ti-(10–75)Ta alloys and their corrosion performance in an aerated Hank's balanced salt solution

S Mendis, W Xu, HP Tang, LA Jones, D Liang, R Thompson, P Choong, M Brandt, M Qian

Applied Surface Science | ELSEVIER | Published : 2020

DOI: 10.1016/j.apsusc.2019.145013

Abstract

This study presents detailed quantitative characterisation of the native oxide films on Ti-(10–75)Ta alloys (in wt.%) using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) and their corresponding corrosion performance in an aerated Hank's balanced salt solution. The oxide film was identified to be amorphous irrespective of the bulk Ta content, and its thickness decreases with increasing bulk Ta content. Noticeable enrichment of Ta2O5 in the oxide film occurred when the bulk Ta content reached 30 wt.%Ta and beyond, corroborated by the fraction of the Ta5+ valence state in the oxide film. Angle resolved-XPS (AR-XPS) analysis revealed that the surface oxide fil..

View full abstract

University of Melbourne Researchers

Peter Choong Author

Related Projects (1)

A NOVEL APPROACH TO THE DESIGN AND FABRICATION OF BIOMIMETIC AND BIOCOMPATIBLE TI-TA IMPLANTS BY ADDITIVE MANUFACTURING

A large number of the Australian population suffer various types of bone issues arising from either age-related degenerative bone problems o..

Grants

Awarded by Australian Research Council

Funding Acknowledgements

The work was co-funded by the Australian Research Council (ARC) through LP LP140100607, Xi'an Sailong Metal Materials Co., Ltd, Xi'an, China and Anatomics Pty Ltd Melbourne, Australia. The authors acknowledge the facilities, and the scientific and technical assistance, of the Australian Microscopy & Microanalysis Research Facility at RMIT University.