Microstructure and properties of magnesium alloy Mg-1Zn-1Ca (Zx11)

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

  • L. Katsarou
  • K. Suresh
  • K. P. Rao
  • N. Hort
  • C. Blawert
  • C. L. Mendis
  • H. Dieringa

In recent years, some magnesium alloy systems have received attention to serve as potential materials for orthopedic implants due to their biocompatibility and biodegradability. Besides acceptable mechanical strength and corrosion rate, also non- Toxicity is an important criterion in the development of these degradable magnesium alloys. Zinc and calcium are essential micro-nutrients in the body, therefore are not expected to be harmful, and positively influence strength by grain refinement and age hardening. To identity biomedical as well as other applications, the as-cast Mg-lZn-ICa (ZX11) material was tested for standard corrosion resistance as well as compression and creep strength, also at elevated temperatures. Microstructural investigations complete the determination of relevant characteristics for the use of ZX11. Grain size reduction is observed along the radius of the cylinder and SEM-EDX analysis reveals Mg2Ca and Mg6Ca2Zn3 phases have formed on the grain boundaries. Dislocation climbing seems to be the rate controlling deformation mechanism for creep. Compression strength increases with temperature gradually increased up to 100 °C, plateaus between 100 and 175 °C and decreases after that. Acceptable corrosion properties have been observed.

Original languageEnglish
Title of host publicationMagnesium Technology 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition
EditorsMichele V. Manuel, Alok Singh, Martyn Alderman, Martyn Alderman, Neale R. Neelameggham
Number of pages5
PublisherThe Minerals, Metals & Materials Society
Publication date2015
Pages419-423
ISBN (electronic)9781119082439
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event144th Annual Meeting and Exhibition of Magnesium Technology - TMS 2015 - Orlando, United States
Duration: 15.03.201519.03.2015
Conference number: 144

    Research areas

  • Corrosion, Creep, Magnesium alloy, Microstructure, Zx11
  • Engineering

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