Volume 2, No. 2, December, 2014
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Investigation of Fatigue Behavior and Fractography of Dissimilar Friction Stir Welded Joints of Aluminum Alloys 7075-T6 and 5052-H34

Ahmed A. Zainulabdeen 1, Muna K. Abbass 1, Ali H. Ataiwi 2, Sanjeev K. Khanna 3, Bharat Jashti 4, and Christian Widener 4
1. Production engineering and metallurgy, University of Technology, Baghdad, Iraq
2. Materials Engineering Department, University of Technology, Baghdad, Iraq
3. Dept. of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
4. Dept. of Materials and Metallurgical Engineering, South Dakota School of Mines and Technology, Rapid City, SD-57701, USA
Abstract—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

Cite: Ahmed A. Zainulabdeen, Muna K. Abbass, Ali H. Ataiwi, Sanjeev K. Khanna, Bharat Jashti, and Christian Widener, "Investigation of Fatigue Behavior and Fractography of Dissimilar Friction Stir Welded Joints of Aluminum Alloys 7075-T6 and 5052-H34," International Journal of Materials Science and Engineering, Vol. 2, No. 2, pp. 115-121, December 2014. doi: 10.12720/ijmse.2.2.115-121

General Information

ISSN: 2315-4527
Editor-in-Chief: Prof. Emeritus Dato' Dr. Muhammad Yahaya
DOI: 10.17706/ijmse
Abstracting/ Indexing: Ulrich's Periodicals Directory, Google Scholar, Crossref
E-mail: ijmse@iap.org