AI Article Synopsis
- Aluminum casting was performed with various Ti concentrations (0.1, 0.2, and 0.3%) in addition to Mg and Mn, using a graphite crucible, and the microstructure was modified via hot rolling to about 2 mm thick.!
- Mechanical testing showed that the Ultimate Tensile Strength improved significantly with increasing Ti content, reaching up to 345 MPa with 0.3 wt% Ti under water quenching, marking a 32.6% increase compared to 0 wt% Ti.!
- Corrosion tests revealed that while heat-treated alloys exhibited good resistance to corrosion in a salt solution, higher Ti content led to increased corrosion rates, attributed to enhanced grain refinement.
Article Abstract
Casting of aluminum with different concentration of alloying elements such as Mg, Mn (similar to that in AA5083) with additional percentages of 0.1, 0.2 and 0.3% Ti, are carried out using graphite crucible. The as-cast microstructure is modified by hot rolling to a thickness of ~ 2 mm. Mechanical and metallurgical and characterization of heat-treated thin sheets are carried out using tensile testing, hardness measurement, metallography, image analysis and optical microscope. By increasing the Ti content, the results show grain refinement and increase in the formation of Al3Ti which reflected positively on the mechanical properties. Specifically, Ultimate tensile strength is increased from 260 MPa (0 wt% Ti) to 345 MPa (0.3 wt% Ti) when using water quenching, 32.6% improvement for air cooling, and 23.3% for furnace cooling. Electrochemical corrosion behavior of heat-treated water quenched, air cooled and furnace cooled samples were tested in 3.5% NaCl solution. The results show that the heat-treated alloys have very good resistance against corrosion, while by increasing the Ti content, the corrosion rate increases due to the grain refinement phenomena.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10352326 | PMC |
| http://dx.doi.org/10.1038/s41598-023-38510-1 | DOI Listing |
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