Crystallographic Orientation Dependence of Fatigue Crack Propagation Behavior in Rolled AZ31 Magnesium Alloy

Shigeki Morita; Nobuyoshi Ohno; Fujio Tamai; Yuji Kawakami

doi:10.4028/www.scientific.net/MSF.654-656.723

Paper Titles

Twinning-Induced Negative Strain Rate Sensitivity in Wrought Magnesium Alloy AZ31
p.707

Grain Refinement of Magnesium Alloy AZ31 under Torsion Extrusion with a Square-Hole Die
p.711

Twinning Behavior in AZ31-B Polycrystal Texture Subjected to In-Situ Bending Test
p.715

Texture and Mechanical Properties of AZ31 Magnesium Alloy Sheets Processed by Symmetric/Asymmetric Combination Hot-Rolling
p.719

Crystallographic Orientation Dependence of Fatigue Crack Propagation Behavior in Rolled AZ31 Magnesium Alloy
p.723

Microstructure Evolution in AZ31 Magnesium Alloy Worked by Torsion at Warm Temperature
p.727

Deep Drawing of AM31 Magnesium Alloys
p.731

Grain Refinement by Combined ECAE/Extrusion and Dieless Drawing Processes for AZ31 Magnesium Alloy Tubes
p.735

Warm Hydroforming Process with Non-Uniform Heating for AZ31 Magnesium Alloy Tube
p.739

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Crystallographic Orientation Dependence of Fatigue...

Crystallographic Orientation Dependence of Fatigue Crack Propagation Behavior in Rolled AZ31 Magnesium Alloy

Abstract:

This paper deals with fatigue crack propagation behavior of rolled AZ31B magnesium alloy. Two types of specimens with the loading axis parallel to rolling direction were machined; fatigue crack propagation direction was parallel to transverse direction (L-T specimen), and short transverse direction (L-S specimen). Fatigue crack propagation tests were performed with center cracked plate tension specimen with stress ratio R=0.1 and frequency of 10Hz at room temperature. Crack propagation rate of L-T specimen was approximately 10 times higher than that of L-S specimen. SEM-EBSD observations revealed that the c-axis direction is unfavorable for the fatigue crack propagation in textured polycrystalline magnesium alloy.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

723-726

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.723

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Online since:

June 2010

Authors:

Shigeki Morita, Nobuyoshi Ohno, Fujio Tamai, Yuji Kawakami

Keywords:

Basal Plane, C-Axis, Deformation Twin, Fatigue Crack Propagation, Magnesium

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