Potentiodynamic behaviour of Ti alloys in physiological solution containing lubricant |
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Authors: | S Sahu SN Paul |
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Affiliation: | a Department of Metallurgical and Materials Engineering, Visvesvaraya National Institute of Technology, Nagpur: 440 011, India b Non Ferrous Materials Technology Development Centre, Hyderabad: 500 058, India c Defence Metallurgical Research Laboratory, Hyderabad: 500 058, India |
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Abstract: | Ti based alloys are finding wide spread usage in various biomedical applications including joint replacement. The corrosion behaviour of these alloys in simulated body fluid conditions in the presence of lubricant is not reported so far. Thus, present work is undertaken to understand the influence of the lubricant on potentiodynamic behaviour of three types of Ti alloy, namely commercially pure (C.P.) Ti having α structure, Ti-6Al-4Fe having α + β structure and Ti-13Ta-29Nb-4.6Zr having β structure in Ringer's solution. The results show that lubrication does not alter the corrosion rates of single-phase alloys, which have low corrosion rates. However, it significantly reduces the corrosion rates of alloy Ti-6Al-4Fe having α + ß structure. |
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Keywords: | Characterization methods Metals and alloys Microstructure Surfaces Corrosion |
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