Thermodynamic description of the Mg-O and Al-O systems
The thermodynamic properties of oxides have a considerable influence on the corrosion behavior of alloys. MgO and Al2O3 are important products in the corrosion process of Mg-Al alloys, therefore it is necessary to investigate their thermodynamic properties. The Mg-O and Al-O systems were critically...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2023-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300034L.pdf |
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| _version_ | 1832569017176424448 |
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| author | Li X.-J. Liu S.-H. |
| author_facet | Li X.-J. Liu S.-H. |
| author_sort | Li X.-J. |
| collection | DOAJ |
| description | The thermodynamic properties of oxides have a considerable influence on the corrosion behavior of alloys. MgO and Al2O3 are important products in the corrosion process of Mg-Al alloys, therefore it is necessary to investigate their thermodynamic properties. The Mg-O and Al-O systems were critically evaluated and re-evaluated using the CALPHAD (CALculation of PHAse Diagram) approach. The liquid phases of these systems were described using the ionic liquid model. According to the literature data, the oxide phases, MgO and Al2O3 were treated as stoichiometric compounds. The thermodynamic parameters of the two stoichiometric compounds were optimized considering both the phase diagram and the thermodynamic data, and finally a set of self-consistent thermodynamic parameters was determined for each system. The calculated results using the presently obtained thermodynamic parameters can reasonably reproduce the reliable experimental data in the literature. |
| format | Article |
| id | doaj-art-e5e8b2a147314fa396704e3d7159d4ae |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-e5e8b2a147314fa396704e3d7159d4ae2025-02-02T23:44:10ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752023-01-0159339540510.2298/JMMB230621034L1450-53392300034LThermodynamic description of the Mg-O and Al-O systemsLi X.-J.0Liu S.-H.1Central South University, National Key Laboratory of Science and Technology on High-strength Structural Materials, Changsha, Hunan, ChinaCentral South University, National Key Laboratory of Science and Technology on High-strength Structural Materials, Changsha, Hunan, ChinaThe thermodynamic properties of oxides have a considerable influence on the corrosion behavior of alloys. MgO and Al2O3 are important products in the corrosion process of Mg-Al alloys, therefore it is necessary to investigate their thermodynamic properties. The Mg-O and Al-O systems were critically evaluated and re-evaluated using the CALPHAD (CALculation of PHAse Diagram) approach. The liquid phases of these systems were described using the ionic liquid model. According to the literature data, the oxide phases, MgO and Al2O3 were treated as stoichiometric compounds. The thermodynamic parameters of the two stoichiometric compounds were optimized considering both the phase diagram and the thermodynamic data, and finally a set of self-consistent thermodynamic parameters was determined for each system. The calculated results using the presently obtained thermodynamic parameters can reasonably reproduce the reliable experimental data in the literature.https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300034L.pdfmg-oal-othermodynamic assessmentphase diagramcalphad method |
| spellingShingle | Li X.-J. Liu S.-H. Thermodynamic description of the Mg-O and Al-O systems Journal of Mining and Metallurgy. Section B: Metallurgy mg-o al-o thermodynamic assessment phase diagram calphad method |
| title | Thermodynamic description of the Mg-O and Al-O systems |
| title_full | Thermodynamic description of the Mg-O and Al-O systems |
| title_fullStr | Thermodynamic description of the Mg-O and Al-O systems |
| title_full_unstemmed | Thermodynamic description of the Mg-O and Al-O systems |
| title_short | Thermodynamic description of the Mg-O and Al-O systems |
| title_sort | thermodynamic description of the mg o and al o systems |
| topic | mg-o al-o thermodynamic assessment phase diagram calphad method |
| url | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300034L.pdf |
| work_keys_str_mv | AT lixj thermodynamicdescriptionofthemgoandalosystems AT liush thermodynamicdescriptionofthemgoandalosystems |