The Influence of Temperature and Medium on Corrosion Response of ZE41 and EZ33

M. AbdelGawad, A. U. Chaudhry, Bilal Mansoor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mg-based implants offer a promising alternative to commonly used permanent implants due to their biodegradability that eliminates the need for a follow-up surgery, along with the associated medical and economic risks. Several of the commercial Mg alloys for various applications including potential implant applications contain rare earth elements that are known to improve mechanical strength and corrosion resistance. However, it remains a significant challenge to better understand in vitro corrosion behavior of Mg–RE alloys and predict in vivo behavior, which is useful for biomedical applications, since in vitro corrosion rates tend to be significantly higher than those reported in vivo. In this work, we study the mechanical and corrosion behavior of two Mg–RE alloys, ZE41 and EZ33, at physiologically relevant temperature of 37 °C in 3.5 wt% NaCl and Hank’s solution. Tensile and compression tests were used to evaluate mechanical properties while electrochemical techniques were used to investigate the corrosion response. Both alloys demonstrated improved corrosion resistance in Hank’s solution which was attributed to the formation of a more protective surface film. In addition, the increased RE concentration positively impacted the corrosion behavior of EZ33 compared to ZE41 in both mediums.

Original languageEnglish
Title of host publicationMagnesium Technology, 2019
EditorsNeale R. Neelameggham, J. Brian Jordon, Dmytro Orlov, Vineet V. Joshi
PublisherSpringer International Publishing
Pages159-167
Number of pages9
ISBN (Print)9783030057886
DOIs
Publication statusPublished - 1 Jan 2019
EventMagnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States
Duration: 10 Mar 201914 Mar 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceMagnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2019
CountryUnited States
CitySan Antonio
Period10/3/1914/3/19

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Keywords

  • Corrosion
  • EIS
  • Mechanical behavior
  • Mg alloys
  • Rare earths

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

AbdelGawad, M., Chaudhry, A. U., & Mansoor, B. (2019). The Influence of Temperature and Medium on Corrosion Response of ZE41 and EZ33. In N. R. Neelameggham, J. B. Jordon, D. Orlov, & V. V. Joshi (Eds.), Magnesium Technology, 2019 (pp. 159-167). (Minerals, Metals and Materials Series). Springer International Publishing. https://doi.org/10.1007/978-3-030-05789-3_24