Christian Widener - Academia.edu (original) (raw)
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The aim of the present work is to investigate the fatigue behavior of friction stir welded joints... more The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys 5052-H34 and 7075-T6. Friction stir welding (FSW) has been done on 4.826mm (0.19) in thick plate by using MTS-5 axis friction stir welder. FSW were carried out under optimum welding parameters with travel speed of 187mm/min (7in/min), rotational speed of 400rpm and forge load of 9KN (2000lbf). Mechanical tests and inspection were performed to characterize the welded joints and determine it to be defect-free. Tension-tension fatigue tests have been done at a frequency of 7Hz with stress ratio R=0.1. Also topography analysis was done using scanning electron microscopy combined with energy dispersive spectroscopy. The fatigue failure has been analyzed. Index Terms-friction stir welding, fatigue behavior, dissimilar joints, aluminum alloys Prof. Dr. Ali H Ataiwi, I have born in Iraq, Baghdad at 1953. I work as a Professor in Material Engineering Dep., University of Technology in Baghdad, Iraq. I have PhD in Metallurgical Engineering 1985 from University of Pierre and Marie Curie, France. I have many papers published in national and international journal, first; "Effect of Different Coating Tec with hniques Al on the Corrosion
The aim of the present work is to investigate the fatigue behavior of friction stir welded joints... more The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys 5052-H34 and 7075-T6. Friction stir welding (FSW) has been done on 4.826mm (0.19) in thick plate by using MTS-5 axis friction stir welder. FSW were carried out under optimum welding parameters with travel speed of 187mm/min (7in/min), rotational speed of 400rpm and forge load of 9KN (2000lbf). Mechanical tests and inspection were performed to characterize the welded joints and determine it to be defect-free. Tension-tension fatigue tests have been done at a frequency of 7Hz with stress ratio R=0.1. Also topography analysis was done using scanning electron microscopy combined with energy dispersive spectroscopy. The fatigue failure has been analyzed. Index Terms-friction stir welding, fatigue behavior, dissimilar joints, aluminum alloys Prof. Dr. Ali H Ataiwi, I have born in Iraq, Baghdad at 1953. I work as a Professor in Material Engineering Dep., University of Technology in Baghdad, Iraq. I have PhD in Metallurgical Engineering 1985 from University of Pierre and Marie Curie, France. I have many papers published in national and international journal, first; "Effect of Different Coating Tec with hniques Al on the Corrosion