Grain refinement of commercial purity Magnesium processed by Ecap (Equal Channel Angular Pressing)

AUTOR(ES)

Poggiali, Flávia Spitale Jacques, Figueiredo, Roberto Braga, Aguilar, Maria Teresa Paulino, Cetlin, Paulo Roberto

FONTE

Materials Research

DATA DE PUBLICAÇÃO

29/02/2012

RESUMO

Grain refinement in magnesium is evaluated in the present paper. Equal Channel Angular Pressing is used to process commercially pure magnesium. Processing was carried out at 523 K which is lower than the temperature used in other papers on the literature. The grain structure was evaluated throughout the deformation zone. The low processing temperature prevents significant grain growth. The evolution of the grain structure is compared to a recent model for mechanism of grain refinement in magnesium. The present results confirm the validity of the model.

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