Abstract
Fatigue life of ‘bead-on-plate’ on commercially pure aluminum and AlZnMg alloy have been investigated. In both cases, the fatigue life of ‘Bead-on-Plate’ specimen was drastically reduced. But when the same weld-bead was flushed off, a marginal improvement in fatigue life was observed. For AlZnMg alloy, the post weld heat treatment was less effective than flushing of weld-bead for improving the fatigue life of welded specimens. Results are analyzed with the help of S- N diagrams and microphotographs.
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