Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7172366 | International Journal of Fatigue | 2014 | 5 Pages |
Abstract
A friction stir welded (FSW) Mg-3Al-1Zn (AZ31) joint, prepared at a welding speed of 100Â mm/min and a rotation rate of 800Â 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.
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Authors
J. Yang, D.R. Ni, B.L. Xiao, Z.Y. Ma,