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Ionic liquid pretreatment as a means to control the corrosion behavior of magnesium alloys in simulated body fluid

conference contribution
posted on 29.09.2022, 03:17 authored by Y Zhang, Maria ForsythMaria Forsyth, Bruce HintonBruce Hinton, S Moulton
Recently, the use of magnesium alloys as metallic implant materials for biodegradable coronary artery stents has been steadily growing in interest. However, AZ31 magnesium alloys present poor corrosion resistance in the body environment. This work reports on the use of a treatment with low-toxicity IL Trimethyl (butyl) phosphonium diphenyl phosphate P1444DPP, which provides corrosion protection for magnesium alloy AZ31 in simulated body fluid (SBF). Before IL treatment, surface was cleaned by HNO3 and H3PO4 acid pickling solution. The effect of ionic liquid treatment on the corrosion performance of magnesium alloys AZ31in simulated body fluid has been investigated by electrochemical tests and the observation of surface morphology. The results show that this IL treatment succeeded in increasing the corrosion resistance of AZ31 when exposed to SBF.

History

Event

Australasian Corrosion Association. Conference (2012 : Melbourne, Victoria)

Pagination

1-8

Publisher

Australasian Corrosion Association

Location

Melbourne, Victoria

Place of publication

[Melbourne, Vic.]

Start date

11/11/2012

End date

14/11/2012

ISBN-13

9781622769698

Language

eng

Title of proceedings

ACA Corrosion & Prevention 2012 : Proceedings of the Annual Australasian Corrosion Association Conference