Ahmed Ameed | Technology(Iraq) - 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 (2024 -T3 and 7020-T6). Friction stir welding (FSW) had been done for 6.6 mm thick plate by using NC milling machine with R18 tool steel of 18mm with shoulder diameter and 6mm pin diameter with different tool designs; threaded cone with double bevel, threaded cylinder with concave shoulder of 4°, and beveled cone with concave shoulder of 4°. FSW were carried out under various welding parameters, travel speed of 40, 50, 75 mm/min, rotation speed range (275-1250) rpm and tilt angle of (Ɵ = 3°) with counterclockwise revolution. Many non-destructive inspections and mechanical tests were performed to evaluate welded joints to determine the best welding parameters. Fatigue test has been done at constant stress amplitude cantilever with stress ratio of (R= -1). The results showed that maximum tensile strength and joint efficiency were 360MPa and 86% respectively ...
International Journal of Materials Science and Engineering, 2014
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
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 (2024 -T3 and 7020-T6). Friction stir welding (FSW) had been done for 6.6 mm thick plate by using NC milling machine with R18 tool steel of 18mm with shoulder diameter and 6mm pin diameter with different tool designs; threaded cone with double bevel, threaded cylinder with concave shoulder of 4°, and beveled cone with concave shoulder of 4°. FSW were carried out under various welding parameters, travel speed of 40, 50, 75 mm/min, rotation speed range (275-1250) rpm and tilt angle of (Ɵ = 3°) with counterclockwise revolution. Many non-destructive inspections and mechanical tests were performed to evaluate welded joints to determine the best welding parameters. Fatigue test has been done at constant stress amplitude cantilever with stress ratio of (R= -1). The results showed that maximum tensile strength and joint efficiency were 360MPa and 86% respectively ...
International Journal of Materials Science and Engineering, 2014
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