Maroufkhani, Mohammad, Khodabandeh, Alireza, Radu, Iulian, Moosavi-Khoonsari, Elmira et Jahazi, Mohammad.
2025.
« Thermodynamic and kinetic analyses of high temperature oxidation of 316L stainless steel ».
Results in Materials, vol. 28.
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Résumé
This study investigates the thermodynamic behavior and non-isothermal oxidation kinetics of 316L stainless steel in the temperature range of 1100 K–1373 K, with relevance to the heat-affected zone during welding in oil and gas pipeline applications. Thermogravimetric analysis was performed at heating rates of 5, 10, 15, 20, and 25 K/ min study the high-temperature oxidation kinetics of AISI 316L stainless steel welds. Kinetic analysis was conducted using Kennedy-Clark and Coats-Redfern methods as well as Friedman, Starink, Kissinger-Akahira-Sunose, and Flynn-Wall-Ozawa model-free isoconversional methods. Activation energies determined using isoconversional models ranged from 224.79 to 233.81 kJ/mol. The second-order (F2) and third-order (F3) reaction models provided the best fit to the experimental data, as confirmed by Criado master plot analysis. Thermodynamic properties (ΔH∕=., ΔS∕=., ΔG∕=) were also calculated for isocoversional models. FactSage thermochemical simulations revealed the formation of a dual-layer protective oxide scale primarily composed of spinel and corundum phases. These oxide layers enhance oxidation resistance at high temperatures. The findings contribute to a mechanistic and kinetic understanding of high-temperature oxidation in 316L stainless steel, supporting its reliable application in demanding oil and gas environments.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Professeur: | Professeur Moosavi-Khoonsari, Elmira Jahazi, Mohammad |
| Affiliation: | Génie mécanique, Génie mécanique |
| Date de dépôt: | 23 oct. 2025 13:55 |
| Dernière modification: | 14 nov. 2025 19:59 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32593 |
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