Microstructure Evolution in AZ31 Magnesium Alloy Worked by Torsion at Warm Temperature

Abstract:

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It had been already reported that the resistance of compression at warm condition can be decreased by the preliminary torsion working at AZ31B magnesium alloy. In the present study, it was found that the dynamic recrystallization occured during warm working by torsion. Dynamic recrystallization was slightly seen in the fractured edge of the bar at a rotation speed of 1rpm at temperature 573K and 623K. The amount of torsion to fracture was increased with increasing of deformation temperature. Remarkable dynamic recrystallization could be seen in the center of bar at the rotation speed of 1rpm at temperature of 673K.

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Main Theme:

Edited by:

Jian-Feng Nie and Allan Morton

Pages:

727-730

DOI:

10.4028/www.scientific.net/MSF.654-656.727

Citation:

K. Aoyama et al., "Microstructure Evolution in AZ31 Magnesium Alloy Worked by Torsion at Warm Temperature", Materials Science Forum, Vols. 654-656, pp. 727-730, 2010

Online since:

June 2010

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Price:

$35.00

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