Title

Effect of Oxide Array on the Fatigue Property of Friction Stir Welds

Abstract

The fatigue behaviour of single-sided friction stir (FS) butt welds containing oxide array was investigated. The oxide array makes cracks initiate easily under fatigue loading, and has a deleterious effect on the fatigue properties of FS welds. The fatigue characteristic values of FS welds with oxide array have been decreased by 35% for 5083 welds and 55% for 2024 welds at 2 x 106 cycles. The fatigue lives of FS welds with oxide array were 20-40 times shorter for Al 5083 welds and 30-80 times shorter for Al 2024 welds than those of sound welds under the stress ratio R = 0.1.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Friction Stir Welding; Oxide Array; Butt Welding; Fatigue Of Materials; Friction Materials; Materials Science; Stress Analysis; Stress Ratio

International Standard Serial Number (ISSN)

13596462

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Elsevier Limited, All rights reserved.

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