Microstructure and Aging Behavior of AZ91 Mg Alloy Fabricated by Inclined Cooling Plate

Abstract:

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Semi-solid AZ91 magnesium alloys were produced using a cooling plate followed by quenching in the mold. The cast and T6 heat treated microstructures were microscopically characterized and subjected to hardness tests. It was found that the resultant microstructure in water quenched semi-solid specimen were finer than that in conventional permanent mold cast specimen. The hardness tests also showed that the hardness of quenched semi-solid cast specimen was higher than that of permanent mold cast specimen. This was attributed to large amount of precipitates which results from fine precipitation of eutectic phase at intergranular areas during the aging treatment after its complete dissolution.

Info:

Periodical:

Solid State Phenomena (Volumes 116-117)

Edited by:

C.G. Kang, S.K. Kim and S.Y. Lee

Pages:

350-353

DOI:

10.4028/www.scientific.net/SSP.116-117.350

Citation:

S. Y. Shim and S. G. Lim, "Microstructure and Aging Behavior of AZ91 Mg Alloy Fabricated by Inclined Cooling Plate", Solid State Phenomena, Vols. 116-117, pp. 350-353, 2006

Online since:

October 2006

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Price:

$35.00

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