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

Y. Zhang, M. Forsyth, B. Hinton, Simon Edward Moulton

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

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 lowtoxicity 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 H 3PO4 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.

Original languageEnglish
Title of host publicationAnnual Conference of the Australasian Corrosion Association 2012
Pages464-471
Number of pages8
Publication statusPublished - 2012
Externally publishedYes
EventAustralasian Corrosion Association (ACA) Conference 2012: Corrosion and Prevention - Crown Conference Centre, Melbourne, Australia
Duration: 11 Nov 201214 Nov 2012

Conference

ConferenceAustralasian Corrosion Association (ACA) Conference 2012
Abbreviated titleCP 2012
CountryAustralia
CityMelbourne
Period11/11/1214/11/12
OtherCorrosion Management for a Sustainable World: Transport, Energy, Mining, Life Extension and Modelling

Keywords

  • Acid pickling
  • Biocompatible ionic liquid
  • Magnesium alloys AZ31
  • Simulated body fluid

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