Corrosion and assisted cracking of magnesium alloys in bioimplant applications: Challenges and opportunities

R. K. Singh Raman, Shervin Eslami Harandi

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

Abstract

Magnesium (Mg) alloys have recently attracted great attention as potential materials for temporary implant applications (such as pins, wires, screws, plates, stents). Use of Mg alloys will completely avoid the cumbersome procedure of second surgery (which increases health care cost and inconvenience to the patients when such implants are constructed out of the traditional materials such as titanium alloys, stainless steels and cobalt-chromium alloys). However, there are some limitations in the case of Mg as a temporary implant. First, the high corrosion rates of Mg alloys in physiological environment may lead to loss in mechanical integrity of the implants. Secondly, the simultaneous action of the corrosive human-body-fluid (HBF) and the mechanical loading can cause stress corrosion cracking (SCC) and corrosion fatigue (CF). The latter is a vastly unexplored research area in the context of the use of Mg alloys as potential implant material. This paper provides an overview of the experimental results on SCC and CF of different Mg alloys in corrosive environments including the simulated body fluid (SBF), and discusses the challenges.

Original languageEnglish
Title of host publicationAustralasian Corrosion Association Annual Conference: Corrosion and Prevention 2015, ACA 2015
Subtitle of host publicationAdelaide, Australia; 15-18 November 2015
Place of PublicationKerrimuir VIC Australia
PublisherAustralasian Corrosion Association
Pages1-9
Number of pages9
ISBN (Print)9781510822573
Publication statusPublished - 2015
EventAustralasian Corrosion Association (ACA) Conference 2015: Corrosion and Prevention - Adelaide Convention Centre, Adelaide, Australia
Duration: 15 Nov 201518 Nov 2015
https://web.archive.org/web/20150226195929/http://acaconference.com.au/home

Conference

ConferenceAustralasian Corrosion Association (ACA) Conference 2015
Abbreviated titleACA 2015
CountryAustralia
CityAdelaide
Period15/11/1518/11/15
Internet address

Keywords

  • Corrosion fatigue
  • Implant materials
  • Mg alloys
  • Stress corrosion cracking

Cite this

Singh Raman, R. K., & Harandi, S. E. (2015). Corrosion and assisted cracking of magnesium alloys in bioimplant applications: Challenges and opportunities. In Australasian Corrosion Association Annual Conference: Corrosion and Prevention 2015, ACA 2015: Adelaide, Australia; 15-18 November 2015 (pp. 1-9). [112] Australasian Corrosion Association.