The Effect of Pre Weld Heat Treatment on the Mechanical Properties and Corrosion Resistance of Artificially Aged 8011A Aluminum Alloy
| Autor: | Isiaka Oluwole Oladele, Samson Adelani Oluwagbenga, J.A. Omotoyinbo |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Metallurgy Alloy technology industry and agriculture chemistry.chemical_element 02 engineering and technology Welding respiratory system engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Corrosion law.invention chemistry law Aluminium 0103 physical sciences engineering General Earth and Planetary Sciences 0210 nano-technology General Environmental Science |
| Zdroj: | Advanced Technologies & Materials. :1-7 |
| ISSN: | 2620-147X 2620-0325 |
| Popis: | In this study, 8011A aluminum alloy was subjected to artificial ageing and joined by tungsten inert gas (TIG) welding process. The effect of welding process on the mechanical (hardness, tensile, impact) properties, corrosion resistance and microstructure of the artificially aged and welded joints were investigated. The sample was divided into pre weld heat treated and as received samples. The pre weld heat treated sample was subjected to solution treatment at 500 °C, soaking for 1 hour, and quench in water before artificial ageing was carried out at 180 °C with holding time of 8 hours. Both the pre heat treated and the as received samples were welded using tungsten inert gas (TIG) welding process. It was observed from the results, that the pre weld heat treatment adopted improved the mechanical properties and corrosion resistance of the weldments in some of the properties examined. In comparison with the welded samples, the hardness, tensile yield strength and corrosion resistance of the pre weld heat treated samples were significantly improved. There was an improvement of 11% in hardness, 9% in yield strength and 92 % in corrosion resistance when immersed in 3.5 wt% NaCl solution. |
| Databáze: | OpenAIRE |
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