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A potential anti-corrosive ionic liquid coating for MG alloy AZ31 in simulated body fluids

conference contribution
posted on 2014-01-01, 00:00 authored by Yafei Zhang, Maria ForsythMaria Forsyth, Bruce HintonBruce Hinton
Magnesium alloys are attractive materials for biomedical applications, due to their excellent biocompatibility. However, these alloys show fast corrosion rates in the body that limits their clinical applications. Low-toxic ionic liquid (IL) trimethyl(butyl)phosphonium diphenyl phosphate P1444dpp has been investigated to provide corrosion protection for magnesium alloy AZ31 in simulated body fluids (SBFs). This work reports a preliminary exploration of the influence of different treatment temperatures on the corrosion protection properties of IL films for the magnesium alloy AZ31 in SBFs. Results show that the IL treatment at room temperature did not bring significant improvement in the corrosion performance of the AZ31 in SBF. However, when the treatment temperature was increased to 75°C, the IL treatment resulted in a substantial reduction of the corrosion, in particular the reduction of localized pitting corrosion. The influence of ionic liquid treatment on the corrosion performance of the magnesium alloys AZ31 in SBFs has been investigated by electrochemical impedance spectroscopy (EIS) tests and immersion tests.

History

Event

Australasian Corrosion Association. Conference (2014 : Darwin, Northern Territory)

Pagination

1 - 10

Publisher

Australasian Corrosion Association

Location

Darwin, Northern Territory

Place of publication

[Darwin, Northern Terroritory]

Start date

2014-09-21

End date

2014-09-24

Language

eng

Publication classification

E Conference publication; E2 Full written paper - non-refereed / Abstract reviewed

Copyright notice

2014, Australasian Corrosion Association

Editor/Contributor(s)

[Unknown]

Title of proceedings

Corrosion and Prevention 2014 : Proceedings of the Annual Conference of the Australasian Corrosion Association

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