Composition effects on the corrosion of aluminium-free magnesium alloys

X. Xia, N. Birbilis, C.H.J. Davies, J. F. Nie

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

1 Citation (Scopus)

Abstract

Electrochemical tests and microhardness tests were carried out on Mg-Gd, Mg-Ca, Mg- Zn, Mg-Mn, Mg-Zr and Mg-Sr binary alloys and Mg-Mn-Zr, Mg-Ca-Zn ternary alloys in the 'as-cast' state. These are one subset of a group of alloys which represent the Al-free class of Magnesium alloys. It is shown that most elemental additions increase the corrosion rate of Magnesium due to enhanced cathodic reaction kinetics. However, there are some notable exceptions in that Zn and Mn in binary additions can moderate the corrosion rate of Magnesium. When present in ternary additions, the relationships between elemental additions, corrosion, and hardness, become more complex.

Original languageEnglish
Title of host publicationAnnual Conference of the Australasian Corrosion Association 2012
Subtitle of host publicationMelbourne, Victoria, Australia; 11-14 November 2012
Place of PublicationKerrimuir VIC Australia
PublisherAustralasian Corrosion Association
Pages770-778
Number of pages9
ISBN (Print)9781622769698
Publication statusPublished - 2012
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

  • Alloying
  • Corrosion
  • Hardness
  • Magnesium

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