Study of the Effect of the A206/1.0 wt. % γAl2O3 Nanocomposites Content on the Portevin-Le Chatelier Phenomenon in Al/0.5 wt. % Mg Alloys
| Autor: | Xiaochun Li, Hongseok Choi, David Florián-Algarín, Oscar Marcelo Suárez |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science Science Al-Mg alloys Portevin-Le Chatelier phenomenon alumina nanoparticles A206 MatLab™ Nanoparticle 02 engineering and technology 01 natural sciences 0103 physical sciences Ultimate tensile strength Composite material Engineering (miscellaneous) 010302 applied physics Nanocomposite Strain (chemistry) 021001 nanoscience & nanotechnology Serration Ceramics and Composites Deformation (engineering) 0210 nano-technology Dynamic strain aging Solid solution |
| Zdroj: | Journal of Composites Science; Volume 5; Issue 6; Pages: 163 Journal of Composites Science, Vol 5, Iss 163, p 163 (2021) |
| ISSN: | 2504-477X |
| DOI: | 10.3390/jcs5060163 |
| Popis: | The Portevin-Le Chatelier (PLC) phenomenon or dynamic strain aging in Al–0.5 wt. % Mg alloys was investigated at different strain rates. This research also examined the effect of γAl2O3 nanoparticles on the PLC phenomenon. A nanocomposite made of A206/1.0 wt. % γAl2O3 was manufactured to this purpose and then, added to an Al–0.5 wt. % Mg melt to obtain ingots of Al–0.5 wt. % Mg–20 wt. % A206/1.0 wt. % γAl2O3 and Al–0.5 wt. % Mg–10 wt. % A206/1.0 wt. % γAl2O3 with 6 mm diameter. Cold deformation allowed manufacturing 1 mm diameter wires using the 6 mm diameter ingots. A 300 °C solution treatment, followed by rapid cooling in ice water permitted to retain Mg atoms in solid solution. The tensile tests performed on the wires revealed the PLC phenomenon upon the tensile stress vs. strain plastic zone. The phenomenon was quantified using MatLab™ and statistical analysis. The results demonstrated how the alumina nanoparticles can diminish the serration amplitude of the PLC phenomenon. |
| Databáze: | OpenAIRE |
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