Fatigue Life Prediction of AA6063-T6 under Erosion Condition

Abstract:

The study of fatigue behavior of aluminum alloy 6063 exposed to periodic fatigue stresses was studied in laboratory conditions under the two conditions of the presence of the first indentation in the first test, then the presence of the phenomenon of erosion in the second test resulting from the projection of pure water Jet on samples of the same metal used in The first test. The purpose of these tests was to estimate the practical life of these samples and the resulting accumulation by using upward and downward variable stresses. A mathematical model was built to calculate the life of the samples in the above conditions, and the results of the estimated life of the samples calculated by the model showed a large convergence with the results of the estimated life of the samples practically calculated. So this mathematical model can be used to estimate the life of samples made of different minerals under these same conditions, after knowing the (S-N) curve for each metal and the amount of the value of the fatigue notch factor (Kf), which can be calculated from special tables without referring to performing practical tests for them.

• Periodical: Materials Science Forum (Volume 1021)
• Pages: 87-96
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1021.87
• Online since: February 2021
• Authors: Baker Alzaidy*, Baker Muthanna Abod
• Keywords: AA6063-T6, Erosion, Fatigue, Fatigue Notch Factor (Kf), S-N Curve

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