4.6 Article

Effect of Ca Addition on Microstructure of Twin-Roll Cast AZ31 Mg Alloy

Journal

METALS AND MATERIALS INTERNATIONAL
Volume 15, Issue 1, Pages 1-5

Publisher

KOREAN INST METALS MATERIALS
DOI: 10.1007/s12540-009-0001-3

Keywords

twin-roll casting; magnesium alloy; dispersoid particle; texture

Funding

  1. Ministry of Commerce, Industry and Energy

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A twin-roll cast (TRC) AZ31-0.7Ca alloy sheet has been subjected to thermo-mechanical treatment (TMT) followed by annealing and its microstructure was evaluated. The as-cast microstructure of TRC AZ31-0.7Ca alloy is essentially similar to that of TRC AZ31 alloy, except for the presence of Al2Ca dispersoid particles. The presence of Al2Ca particles imparts significant changes to the microstructure of TMT-ed TRC alloy such as the refinement of grain size and evolution of textures different from those of ingot cast and TRC AZ31 alloys.

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