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      Time dependent hardness and residual stress reduction in a shot-peened aluminum alloy 2024-T351 Translated title: Zeitabhängige Härte- und Eigenspannungsreduktion einer kugelgestrahlten Aluminiumlegierung 2024-T351


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          In common engineering practice, the shot-peened aluminum alloy 2024-T351 is often subjected to loading. After time passes, the residual stress induced by shot peening might relax leading to respective metal cracking and failure. For this study, samples were stored for two years and a comparison of the hardness and microstructure before and after two years storage was carreid out. The primary aim of this study was to determine the effect of time on hardness and microstructure of shot-peened sample, thus to calculate the residual stress relaxation depending on time parameter. The results showed that the hardness and the residual stress of the material reduced after two years. The average reduction of the hardness is 20 % and the residual stress reduction ranged at 47 %


          In der Ingenieurpraxis ist es üblich, dass die kugelgestrahlte Aluminiumlegierung einer Belastung unterworfen wird. Mit der Zeit relaxiert die Eigenspannung, die mittels Kugelstrahlen eingebracht wurde, was zu Rissen und Versagen des Metalls führt. In der diesem Beitrag zugrunde liegenden Studie wurden Proben für zwei Jahre gelagert und es wurde ein Vergleich der Härte vor und nach den zwei Jahren durchgeführt. Das primäre Ziel der Studie bestand darin, die Auswirkungen der Zeit auf die Härte und die Mikrostruktur der Proben zu untersuchen, um einen Spannungsrelaxationsparameter abhängig von der Zeit zu berechnen. Die Ergebnisse zeigten, dass nach zwei Jahren die Härte und die Eigenspannungen im Werkstoff abnahmen. Die durchschnittliche Abnahme der Härte betrug 20 % und die der Eigenspannungen 47 %.

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          Most cited references8

          • Record: found
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          Mechanical surface treatments on titanium, aluminum and magnesium alloys

          L. Wagner (1999)
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            The effect of controlled shot peening on the fatigue behaviour of 2024-T3 aluminium friction stir welds

              • Record: found
              • Abstract: not found
              • Article: not found

              Modeling of residual stress relaxation of fatigue in 2024-T351 aluminium alloy


                Author and article information

                Materials Testing
                Carl Hanser Verlag
                16 November 2016
                : 58
                : 11-12
                : 997-1000
                1 Selangor, Malaysia
                Author notes
                [* ] Correspondence Address, Dr. Omar Suliman Zaroog, Department of Mechanical Engineering, College of Engineering, Universiti Tenaga Nasional, Jalan Ikram-Uniten, 43000 Kajang, Selangor, Malaysia, E-mail: omars@ 123456uniten.edu.my

                Dr. Omar Suliman Zaroog finished his Bachelor degree in Mechanical Engineering at Khartoum University, Sudan. He received hisMaster degree in Manufacturing Engineering Systems from University Putra, Malaysia, Serdang, Selangor and his PhD in Mechanical Engineering also from Universiti Putra Malaysia. He has professional experience in fatigue and fracture. Currently, he is a senior lecturer in the Department of Mechanical Engineering, College of Engineering at Universiti Tenaga National in Kajang, Selangor, Malaysia.

                Mohd Rashdan Isa, born in 1985, is currently lecturer at Universiti Tenaga National in Kajang, Selangor, Malaysia. He graduated from the University of Applied Sciences in Mannheim, Germany as Dipl.-Ing. in Mechanical Engineering. He furthered his study as a MEng in Manufacturing Systems Engineering at University Putra in Serdang, Selangor, Malaysia. He also has experience as design and development engineer at an automotive parts manufacturer, Sapura Industrial Berhad.

                Muhammad Zulhimi Bin Mohd Mohni, is currently working as an engineer in a manufacturing company in Shah Alam, Malaysia. He graduated from the Department of Mechanical Engineering, Universiti Tenaga Nasional, in Kajang, Selangor, Malaysia. He is an active student interested in material and applied mechanics.

                © 2016, Carl Hanser Verlag, München
                Page count
                References: 16, Pages: 4
                Fachbeiträge/Technical Contributions

                Materials technology,Materials characterization,Materials science
                Materials technology, Materials characterization, Materials science


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