Microstructure, mechanical and corrosion properties of Mg-Gd-Zn alloys

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

Authors

  • A. Srinivasa
  • Y. Huang
  • C. L. Mendis
  • H. Dieringa
  • C. Blawert
  • K. U. Kainer
  • N. Hort

Microstructure, mechanical and corrosion properties of Mg-10Gd-2Zn and Mg-10Gd-6Zn (all in wt.%) were evaluated in the as-cast condition. The microstructures of both alloys contained (Mg, Zn)3Gd phase at the interdendritic regions and long period stacking ordered (LPSO) phase distributed in the matrix. The Mg-10Gd-6Zn alloy consisted of a high volume fraction of (Mg,Zn)3Gd intermetallic phases continuously distributed along the grain boundaries. The tensile properties, especially the elongation to failure of the Mg-10Gd-6Zn alloy were slightly lower than those of Mg-10Gd-2Zn. An enhancement in creep resistance was observed with Mg-10Gd-2Zn alloy with the post creep tested microstructure showing dynamic precipitation. Corrosion studies indicated that increased Zn content, from 2 to 6% in Mg-10Gd alloys, significantly reduced the corrosion resistance.

Original languageEnglish
Title of host publicationLight Metals Technology 2013
EditorsIan Stone, Brian McKay, Zhonggyun Fan
Number of pages5
PublisherTrans Tech Publications Ltd
Publication date2013
Pages28-32
ISBN (print)9783037857663
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event6th International Light Metals Technology Conference - LMT 2013 - Old Windsor, United Kingdom
Duration: 24.07.201326.07.2013
Conference number: 6

    Research areas

  • Corrosion behaviour, Creep, LPSO, Mg-Gd-Zn alloys, Tensile properties
  • Engineering