Title

Effect of Kissing Bond on Fatigue Behavior of Friction Stir Welds on Al 5083 Alloy

Abstract

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.

Department(s)

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)

0022-2461

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Springer Netherlands, All rights reserved.

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