Understanding corrosion-assisted cracking of magnesium alloys for bioimplant applications

R. K. Singh Raman, Shervin Eslami Harandi

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

3 Citations (Scopus)

Abstract

Magnesium (Mg) alloys possess great potential for their use as temporary implants and devices (such as pins, wires, screws, plates, and stents). Use of Mg alloys as temporary implants will completely avoid the cumbersome procedure of second surgery (which is required when such implants are constructed out of traditional materials such as titanium alloys or stainless steels). However, there are some limitations of Mg as a temporary implant. Firstly, the high corrosion rates of Mg alloys in the physiological environment may lead to loss in mechanical integrity of the implants. Secondly, the simultaneous action of the corrosive human-body-fluid and the mechanical loading can cause sudden and catastrophic fracture due to corrosion-assisted expedited cracking, such as stress corrosion cracking (SCC) and/or corrosion fatigue (CF). SCC and CF of Mg alloy implants are vastly unexplored research areas. This article provides an overview of the experimental results on SCC and CF of different Mg alloys in corrosive environments including simulated body fluid (SBF), and discusses associated fracture mechanisms.

Original languageEnglish
Title of host publicationTMS 2016: Proceedings of the Magnesium Technology Symposium held at the 145th TMS Annual Meeting & Exhibition
Subtitle of host publicationNashville, Tennessee; February 14-18, 2016
EditorsAlok Singh, Kiran Solanki, Michele V. Manuel, Neale R. Neelameggham
PublisherJohn Wiley & Sons
Pages343-346
Number of pages4
VolumeHoboken NJ USA
ISBN (Electronic)9781119225805
Publication statusPublished - 2016
EventConference on Magnesium Technology held during TMS Annual Meeting and Exhibition 2016 - Music City Center, Nashville, United States of America
Duration: 14 Feb 201618 Feb 2016
Conference number: 145th
https://searchworks.stanford.edu/view/11926961

Publication series

NameMagnesium Technology
PublisherJohn Wiley & Sons
Volume2016
ISSN (Print)1545-4150

Conference

ConferenceConference on Magnesium Technology held during TMS Annual Meeting and Exhibition 2016
Abbreviated titleTMS 2016
CountryUnited States of America
CityNashville
Period14/02/1618/02/16
OtherThe Magnesium Technology Symposium, the event on which this collection is based, is one of the largest yearly gatherings of magnesium specialists in the world. Papers represent all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2016 covers a broad spectrum of current topics, including alloys and their properties; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; ecology; and structural applications. In addition, there is coverage of new and emerging applications.
Internet address

Keywords

  • Biodegradable implants
  • Corrosion fatigue
  • Magnesium alloys
  • Stress corrosion cracking

Cite this

Singh Raman, R. K., & Harandi, S. E. (2016). Understanding corrosion-assisted cracking of magnesium alloys for bioimplant applications. In A. Singh, K. Solanki, M. V. Manuel, & N. R. Neelameggham (Eds.), TMS 2016: Proceedings of the Magnesium Technology Symposium held at the 145th TMS Annual Meeting & Exhibition: Nashville, Tennessee; February 14-18, 2016 (Vol. Hoboken NJ USA, pp. 343-346). (Magnesium Technology; Vol. 2016). John Wiley & Sons.