Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives
In this study, two successive methods were used to improve the grain structure and the mechanical and physical properties of Al 5052 aluminum alloy. The modifying elements, 0.99 wt.% of titanium (Ti) and 0.2 wt.% of boron (B), were added during the casting process. After solidification, single- and...
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/835 |
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| author | Essam B. Moustafa Mashhour A. Alazwari Waheed Sami Abushanab Emad Ismat Ghandourah Ahmed O. Mosleh Haitham M. Ahmed Mohamed A. Taha |
| author_facet | Essam B. Moustafa Mashhour A. Alazwari Waheed Sami Abushanab Emad Ismat Ghandourah Ahmed O. Mosleh Haitham M. Ahmed Mohamed A. Taha |
| author_sort | Essam B. Moustafa |
| collection | DOAJ |
| description | In this study, two successive methods were used to improve the grain structure and the mechanical and physical properties of Al 5052 aluminum alloy. The modifying elements, 0.99 wt.% of titanium (Ti) and 0.2 wt.% of boron (B), were added during the casting process. After solidification, single- and double-pass friction stir processing (FSP) were performed to achieve additional grain refinement and disperse the newly formed phases well. The addition of Ti–B modifiers significantly improved the mechanical and physical properties of the Al 5052 aluminum alloy. Nevertheless, only a 3% improvement in microhardness was achieved. The ultimate strength (US), yield strength (YS), and elastic modulus were investigated. In addition, the electrical conductivity was reduced by 56% compared to the base alloys. The effects of grain refinement on thermal expansion and corrosion rate were studied; the modified alloy with Ti–B in the as-cast state showed lower dimension stability than the samples treated with the FSP method. The grain refinement significantly affected the corrosion resistance; for example, single and double FSP passes reduced the corrosion rate by 11.4 times and 19.2 times, respectively. The successive FSP passes, resulting in a non-porous structure, increased the bulk density and formed precipitates with high bulk density. |
| first_indexed | 2024-03-09T23:37:47Z |
| format | Article |
| id | doaj.art-36848f8b059e46d6a8037e2295d05852 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:37:47Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-36848f8b059e46d6a8037e2295d058522023-11-23T16:57:53ZengMDPI AGMaterials1996-19442022-01-0115383510.3390/ma15030835Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B AdditivesEssam B. Moustafa0Mashhour A. Alazwari1Waheed Sami Abushanab2Emad Ismat Ghandourah3Ahmed O. Mosleh4Haitham M. Ahmed5Mohamed A. Taha6Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi ArabiaMechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi ArabiaMarine Engineering Department, Faculty of Maritime Studies and Marine Engineering, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Nuclear Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi ArabiaMechanical Engineering Department, Shoubra Faculty of Engineering, Benha University, Cairo 11629, EgyptDepartment of Mining Engineering, King Abdulaziz University, Jeddah 21589, Saudi ArabiaSolid State Physics Department, National Research Centre, El Buhouth Street, Dokki, Giza 12622, EgyptIn this study, two successive methods were used to improve the grain structure and the mechanical and physical properties of Al 5052 aluminum alloy. The modifying elements, 0.99 wt.% of titanium (Ti) and 0.2 wt.% of boron (B), were added during the casting process. After solidification, single- and double-pass friction stir processing (FSP) were performed to achieve additional grain refinement and disperse the newly formed phases well. The addition of Ti–B modifiers significantly improved the mechanical and physical properties of the Al 5052 aluminum alloy. Nevertheless, only a 3% improvement in microhardness was achieved. The ultimate strength (US), yield strength (YS), and elastic modulus were investigated. In addition, the electrical conductivity was reduced by 56% compared to the base alloys. The effects of grain refinement on thermal expansion and corrosion rate were studied; the modified alloy with Ti–B in the as-cast state showed lower dimension stability than the samples treated with the FSP method. The grain refinement significantly affected the corrosion resistance; for example, single and double FSP passes reduced the corrosion rate by 11.4 times and 19.2 times, respectively. The successive FSP passes, resulting in a non-porous structure, increased the bulk density and formed precipitates with high bulk density.https://www.mdpi.com/1996-1944/15/3/835friction stir processgrainrefinementTi–B modifiersmechanicalelectrical |
| spellingShingle | Essam B. Moustafa Mashhour A. Alazwari Waheed Sami Abushanab Emad Ismat Ghandourah Ahmed O. Mosleh Haitham M. Ahmed Mohamed A. Taha Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives Materials friction stir process grain refinement Ti–B modifiers mechanical electrical |
| title | Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives |
| title_full | Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives |
| title_fullStr | Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives |
| title_full_unstemmed | Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives |
| title_short | Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives |
| title_sort | influence of friction stir process on the physical microstructural corrosive and electrical properties of an al mg alloy modified with ti b additives |
| topic | friction stir process grain refinement Ti–B modifiers mechanical electrical |
| url | https://www.mdpi.com/1996-1944/15/3/835 |
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