Microstructure Refinement of Magnesium Based Alloy

Abstract:

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Additions of grain refiners based on Ca, Ca/Si, Al3Ti and Al4C3 to pure magnesium and AZ31 alloy result in remarkable microstructure refinement. With proper amount of these refiners addition, the grain size in as-cast ingots is one order of magnitude lower than that without refiner addition. Small amount of refiner addition to alloy AZ31 increases both ultimate and yield strength significantly, and the ductility of the alloy is similar to that without refiner addition. Additions of refiner improve the deformation formability of the AZ31 alloy.The extruded and hot rolled specimens (rods or sheets) with refiner addition are crack free and exhibit higher surface quality and mechanical properties than that without refiner addition.

Info:

Periodical:

Materials Science Forum (Volumes 488-489)

Edited by:

W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo

Pages:

143-146

DOI:

10.4028/www.scientific.net/MSF.488-489.143

Citation:

F. Xue et al., "Microstructure Refinement of Magnesium Based Alloy", Materials Science Forum, Vols. 488-489, pp. 143-146, 2005

Online since:

July 2005

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Price:

$35.00

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