alexa Effect of Friction Stir Processing on (2024-T3) Aluminum Alloy
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

Effect of Friction Stir Processing on (2024-T3) Aluminum Alloy

Fadhel A. Hashim1, Raid K. Salim2 and Basheer H. Khudair3
  1. Asst. Prof. Materials Engineering Department, University of Technology, Baghdad, Iraq
  2. Asst. Prof. Babylon Technical Institute, Al-Furat Al-Awsat Technical University, Babylon, Iraq
  3. P.G. Student, Welding Engineering Department, Engineering Technical College-Baghdad, Middle Technical University, Baghdad, Iraq
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Abstract

In this work, friction stir process (FSP) was used to enhance surface properties of AA2024-T3 alloy. The effect of friction stir shoulder rotation in addition to its pressing effect on surface topography and mechanical properties was studied. Samples were FS processed with a flat pinless cylindrical shoulder of 10mm diameter with a constant rotational and travel speeds 945 rpm and 85mm/min respectively. Results show that processed layer thickness of about 45 μm was produced after FSP. Microscopic examinations (OM and SEM) revealed refining grain size of second phase particles as a result of mixing effect of the tool. XRD results show changes in the height and width of the strengthening phase θ(Al2Cu) peaks, while EDX results show that Al and Cu created at another energy (KeV) compared with those that are not in phase before FSP. The maximum hardness increment is about 40-45% and the maximum value obtained at the surface is 190Hv compared to 130Hv before processing. A little bit increase was recorded in yield and tensile strengths by an amount of 15% and 9% respectively after FSP.

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