Pre-Corrosion and Surface Treatments Effects on the Fatigue Life of AA6082 T6

Applying of surface treatments as shot peening and ball burnishing had markedly enhanced the fatigue life of AA6082 T6. Both surface treatments resulted in a surface strengthen and induced compressive residual stresses in the near surface regions. Pre‐corrosion in 3.5% NaCl solution resulted in nume...

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Bibliographic Details
Published in:Advanced engineering materials 2013-10, Vol.15 (10), p.1002-1006
Main Authors: Abdulstaar, Mustafa, Mhaede, Mansour, Wagner, Lothar
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fatigue
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Production techniques
Surface treatment
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Summary:Applying of surface treatments as shot peening and ball burnishing had markedly enhanced the fatigue life of AA6082 T6. Both surface treatments resulted in a surface strengthen and induced compressive residual stresses in the near surface regions. Pre‐corrosion in 3.5% NaCl solution resulted in numerous surface pits that led to degradation of fatigue life of the reference electrolytically polished conditions. These detrimental effects on fatigue life could be entirely eliminated by applying surface treatments either before or after pre‐corrosion.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.201300054