Superplastic elongation characteristic of fine grained magnesium alloy ZK60

Shyong Lee, Chihte Chiang, Jyhshyan Leu, Yunghung Chen

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This paper employs simple rolling process plus annealing to refine the grain size of magnesium alloy ZK60. This goal is effectively achieved, obtaining grains as fine as ∼ 3.7 μm. Such a specimen shows an elongation of 642%, and its ultimate fracture surface exhibits intergranular separation and significant grain growth. Additionally, the effects of the specimen's geometry and tensile test axis with respect to the rolling direction on superplastic elongation is studied, which has not been done before.

Original languageEnglish
Pages (from-to)421-425
Number of pages5
JournalRare Metals
Issue number4
StatePublished - Aug 2010


  • Grain refining
  • Magnesium alloy
  • Rolling process
  • Superplastic elongation


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