Speaker
Prof.
Hasani Chauke
(University of Limpopo)
Description
Zr-based alloys are aimed for the more severe operating conditions, such as higher burn-up and increased operation temperature, this is due to their good resistance to corrosion and high melting point. Most of these Zr alloys contains Nb as the major alloying element, which is recommended for developing new fuel cladding materials since it is an effective strengthening element. This study uses ab initio method to investigate the effect of Co and Sn addition on Zr-Nb alloy, their thermodynamic and mechanical properties were calculated to understand the effect of alloying. In the quest to enhance the resistance to corrosion of the advanced future cladding nuclear material, we have investigated the Zr-Nxb alloys which allow to introduce small Co and Sn contents at less computational costs. The Zr-xNb alloys with a higher percentage of Nb ( x> 5) causes the deterioration of corrosion properties. We have noted significance of alloying Zr-Nxb at small concentrations. It was found that the Co and Sn addition on the Zr-Nxb alloy at small concentrations are more preferred for thermodynamic and mechanical stability of the alloy system. Their elastic stability was also evaluated at high temperature and revealed that the Sn addition is more preferred and may be applicable in the development of future cladding nuclear materials.
Supervisor details<br><b>If not a student, type N/A.</b><br>Student abstract submision<br>requires supervisor permission:<br>please give their name,<br> institution and email address.
Prof. H.R. Chauke. University of Limpopo. hr.chauke@ul.ac.za
Prof. P.E. Ngoepe. University of Limpopo. Phuti.Ngoepe@ul.ac.za
| Please confirm that you<br>have carefully read the<br>abstract submission instructions<br>under the menu item<br>"Call for Abstracts"<br><b>(Yes / No)</b> | Yes |
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| Consideration for<br>student awards<br><b>Choose one option<br>from those below.</b><br>N/A<br>Hons<br>MSc<br>PhD | MSc |
Primary author
Mr
Martinus Magoja Malebati
(University of Limpopo)
Co-authors
Prof.
Hasani Chauke
(University of Limpopo)
Prof.
Phuti Ngoepe
(University of Limpopo)
