Effect of Kissing Bond on Fatigue Behavior of Friction Stir Welds on Al 5083 Alloy
Fatigue properties of FS welds with a kissing bond (bonded welds) were studied by comparing the test results of bonded welds with those of sound welds. The fatigue life of bonded welds is 21~43 times shorter than that of sound welds under the stress ratio R = 0.1, and the fatigue characteristic values of each welds have decreased from 100.24 MPa for sound welds to 65.57 MPa for bonded welds at 2 x 106 cycles. At the macroscopic level there is no evidence of failure by shear. The fatigue fracture revealed cracks initiated from the root tip of kissing bond.
C. Zhou et al., "Effect of Kissing Bond on Fatigue Behavior of Friction Stir Welds on Al 5083 Alloy," Journal of Materials Science, vol. 41, no. 10, pp. 2771-2777, Springer Netherlands, May 2006.
The definitive version is available at http://dx.doi.org/10.1007/s10853-006-6337-x
Materials Science and Engineering
Keywords and Phrases
Aluminum Alloys; Cracks; Failure Analysis; Fatigue Of Materials; Fracture; Friction; Bonded Welds; Friction Stir Welds; Stress Ratio; Welds
International Standard Serial Number (ISSN)
Article - Journal
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