Notice of RetractionStatistical aspects of fatigue crack growth life of base metal, weld metal and heat affected zone in FSWed 7075–T651 aluminum alloy

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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In this study, statistical aspects of fatigue crack growth life of base metal (BM), weld metal (WM) and heat affected zone (HAZ) in friction stir welded (FSWed) 7075-T651 aluminum alloy has been statistically analyzed by Weibull statistical analysis using our previous experimental data. The fatigue crack growth test were performed at room temperature on ASTM standard CT specimens under 3 different constant stress intensity factor ranges control. The statistical aspects are reported in this paper with special emphasis on the variability of fatigue crack growth life for each stress intensity factor range in material properties, namely BM, WM and HAZ specimens. The Weibull distribution was employed to estimate the statistical aspects of fatigue crack growth life. The shape parameter of Weibull distribution for fatigue crack growth life was significantly affected by material properties and stress intensity factor range. The scale parameter of WM specimen exhibited at the lowest value under all stress intensity factor ranges.