Fracture Toughness in Ultra Fine-Grained Magnesium Alloy

Abstract:

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The fracture toughness was investigated using in an extruded AZ31 magnesium alloy with an initial grain size of 1.0 μm. Since the small scale yielding condition was not satisfied with the present thin thickness, the value of plane-strain fracture toughness, KIC = 27.9 MPam1/2, was measured from Stretched Zone analysis. The values of KIC in AZ31 magnesium alloys were dependent on the grain size. The grain refinement was found to be one of the improvement methods for fracture toughness in magnesium alloy.

Info:

Periodical:

Materials Science Forum (Volumes 503-504)

Edited by:

Zenji Horita

Pages:

155-160

DOI:

10.4028/www.scientific.net/MSF.503-504.155

Citation:

H. Somekawa and T. Mukai, "Fracture Toughness in Ultra Fine-Grained Magnesium Alloy", Materials Science Forum, Vols. 503-504, pp. 155-160, 2006

Online since:

January 2006

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Price:

$35.00

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