Corrosion characteristics of two rare earth containing magnesium alloys

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

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

2 Citations (Scopus)

Abstract

Magnesium (Mg) based alloys have received prevalent attention, especially in the biomedical, aerospace and automotive industries due to their low density, moderate strength and natural ability to degrade. However, widespread use of Mg-based alloys as degradable biomedical implants still remains a significant technological challenge because of their rapid corrosion kinetics that leads to premature loss of mechanical integrity. Addition of certain alloying elements such as Zinc and Rare Earth Elements (REs) improve the mechanical and corrosion response of Mg alloys. In this paper, the mechanical and corrosion characteristics of two commercially available RE containing Mg alloys, ZE41 and EZ33 are studied. Results obtained using hydrogen evolution, weight-loss measurements, and electrochemistry (PD and EIS) in comparison with pure Mg data are presented here. These initial findings indicate that although, ZE41 and EZ33 have the same primary alloying elements, due to the addition of REs, differences in composition, nature of precipitates and passivating layer play a key role in positively impacting the corrosion behavior and hence, the corrosion rate.

Original languageEnglish
Title of host publicationMagnesium Technology 2018
PublisherSpringer International Publishing
Pages43-53
Number of pages11
ISBN (Print)9783319723310
DOIs
Publication statusPublished - 1 Jan 2018
EventInternational Symposium on Magnesium Technology, 2018 - Phoenix, United States
Duration: 11 Mar 201815 Mar 2018

Publication series

NameMinerals, Metals and Materials Series
VolumePart F7
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Other

OtherInternational Symposium on Magnesium Technology, 2018
CountryUnited States
CityPhoenix
Period11/3/1815/3/18

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Keywords

  • Corrosion
  • Electrochemical
  • EZ33
  • Magnesium
  • Rare earths
  • ZE41

ASJC Scopus subject areas

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

Cite this

AbdelGawad, M., Mansoor, B., & Chaudhry, A. U. (2018). Corrosion characteristics of two rare earth containing magnesium alloys. In Magnesium Technology 2018 (pp. 43-53). (Minerals, Metals and Materials Series; Vol. Part F7). Springer International Publishing. https://doi.org/10.1007/978-3-319-72332-7_9