Experimental conditions to obtain a CET in a refined Al-10wt.%Cu alloy
| dc.contributor.author | TEGHRI Asma | |
| dc.contributor.author | NGUYEN THI Henri (Encadrant) | |
| dc.contributor.author | REINHART Guillaume (Encadrant) | |
| dc.contributor.author | BENOUDIA Mohamed Cherif (Encadrant) | |
| dc.date.accessioned | 2024-05-21T09:38:26Z | |
| dc.date.available | 2024-05-21T09:38:26Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | X-radiography with the laboratory device SFINX (Solidification Furnace with IN situ X-radiography) was applied to determine the conditions to obtain a Columnarto- Equiaxed Transition (CET) in a refined Al-10wt.%Cu alloy with the help of in-situ and in real time observations. The experiments were conducted in an horizontal configuration with the temperature gradient perpendicular to the gravity vector. Such configuration can be considered as a reference case in quasi-diffusive conditions because gravity effects are strongly minimized. The CET was provoked by a steep increase of the cooling rate. The experiments were conducted in three stages: • By applying parameters from a previous sounding rocket experiment where the CET was investigated in an Al-20wt.%Cu alloy. No CET was obtained for the studied Al-10wt.%Cu alloy. • By decreasing the temperature gradient. The columnar grains were stopped but replaced by elongated instead of equiaxed grains. • By even more decreasing the temperature gradient. A CET was finally obtained and the experiment was successfully repeated for validation. | |
| dc.identifier.uri | http://dspace.ensti-annaba.dz:4000/handle/123456789/107 | |
| dc.language.iso | en | |
| dc.publisher | Ecole Nationale Supérieure de Technologie et d'Ingénierie. Annaba (Ex ENSMM) | |
| dc.subject | directional solidification | |
| dc.subject | Al-Cu alloys | |
| dc.subject | X-radiography | |
| dc.subject | Columnarto-Equiaxed Transition | |
| dc.title | Experimental conditions to obtain a CET in a refined Al-10wt.%Cu alloy | |
| dc.type | Thesis |