Article ID Journal Published Year Pages File Type
7172366 International Journal of Fatigue 2014 5 Pages PDF
Abstract
A friction stir welded (FSW) Mg-3Al-1Zn (AZ31) joint, prepared at a welding speed of 100 mm/min and a rotation rate of 800 rpm, was subjected to stress fatigue test. During fatigue deformation, while the specimen thickness shrank around the nugget zone (NZ)/thermomechanically-affected zone (TMAZ) boundary, it varied little in the NZ middle. Besides, the surface appearance differed between the two sides of a fatigued specimen. This non-uniform deformation was attributed to different grain orientation distributions and sheared material layers in various regions, which influenced the fatigue life and fracture behavior of the joint.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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