High temperature deformation of cast ZW11 magnesium alloy with very large grain size

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

Authors

  • K. P. Rao
  • M. Bagheripoor
  • H. Dieringa
  • N. Hort

Magnesium (Mg) alloys are considered for biomedical applications due to their matching bone density and biodegradable/abioabsorable nature. Mg-1% Zinc-1% Yttrium (ZW11) alloy was cast using a direct chill slow cooling process to obtain dense ingot with uniform composition. However, the resultant alloy developed a very coarse grained microstructure with a grain size in the range of 2,600 to 4,000 μm (2.6-4.0 mm). The hot working behavior of ZW11 alloy has been investigated using compression tests in the temperature and strain rate ranges of 340-540 °C and 0.0003 - 10 s-1 to evaluate the optimum processing parameters. A processing map has been developed on the basis of the flow stress data. The processing map reveals a window of workability in the temperature and strain rate ranges of 460-540 °C and 0.0003-10 s-1 and regimes of flow instability. The microstructures of the deformed alloy provided support to the processing map.

Original languageEnglish
Title of host publicationAdvances in Engineering Plasticity and its Application XIII
EditorsFusahito Yoshida, Hiroshi Hamasaki
Number of pages6
PublisherTrans Tech Publications Ltd
Publication date2017
Pages232-237
ISBN (print)9783035710243
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event13th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2016 - Hiroshima, Japan
Duration: 04.12.201608.12.2016
Conference number: 13

    Research areas

  • Hot deformation, Magnesium alloy, Microstructure., Processing map
  • Engineering