Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys
The diffusion kinetics of the BCC-structured high-entropy alloys (HEAs) is studied experimentally for the first time. First, the literature data regarding the transition-metal based, single-phase, BCC-structured HEAs is re-evaluated using the state-of-the-art, HEAs-dedicated TCHEA4 thermodynamic dat...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-08-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2022.2064728 |
| _version_ | 1817979271068516352 |
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| author | Marek Zajusz Monika Jawańska Juliusz Dąbrowa Katarzyna Berent Grzegorz Cieślak Tadeusz Kulik Krzysztof Mroczka |
| author_facet | Marek Zajusz Monika Jawańska Juliusz Dąbrowa Katarzyna Berent Grzegorz Cieślak Tadeusz Kulik Krzysztof Mroczka |
| author_sort | Marek Zajusz |
| collection | DOAJ |
| description | The diffusion kinetics of the BCC-structured high-entropy alloys (HEAs) is studied experimentally for the first time. First, the literature data regarding the transition-metal based, single-phase, BCC-structured HEAs is re-evaluated using the state-of-the-art, HEAs-dedicated TCHEA4 thermodynamic database, signalizing the need for further reassessment of the literature data accumulated during the last decade. The selected Al-Cr-Fe-Mn-V system was used for the interdiffusion experiments. The concentration profiles were evaluated using the numerical combinatorial approach, revealing surprisingly fast diffusion kinetics. The comparison with the available diffusion data for conventional BCC alloys supports recent findings regarding the lack of the ‘sluggish diffusion’ in HEAs.IMPACT STATEMENTThe first-ever experimental study of interdiffusion in BCC-structured high-entropy alloys is conducted, revealing fast diffusion kinetics and providing a further argument against the presence of sluggish diffusion effect in HEAs. |
| first_indexed | 2024-04-13T22:40:43Z |
| format | Article |
| id | doaj.art-24aa2d3b4b2e4dfabfb130365aa15964 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-04-13T22:40:43Z |
| publishDate | 2022-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-24aa2d3b4b2e4dfabfb130365aa159642022-12-22T02:26:38ZengTaylor & Francis GroupMaterials Research Letters2166-38312022-08-0110855656510.1080/21663831.2022.2064728Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloysMarek Zajusz0Monika Jawańska1Juliusz Dąbrowa2Katarzyna Berent3Grzegorz Cieślak4Tadeusz Kulik5Krzysztof Mroczka6Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Kraków, PolandFaculty of Materials Science and Ceramics, AGH University of Science and Technology, Kraków, PolandFaculty of Materials Science and Ceramics, AGH University of Science and Technology, Kraków, PolandAcademic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Kraków, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Warszawa, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Warszawa, PolandFaculty of Exact and Natural Sciences, Pedagogical University of Krakow, Kraków, PolandThe diffusion kinetics of the BCC-structured high-entropy alloys (HEAs) is studied experimentally for the first time. First, the literature data regarding the transition-metal based, single-phase, BCC-structured HEAs is re-evaluated using the state-of-the-art, HEAs-dedicated TCHEA4 thermodynamic database, signalizing the need for further reassessment of the literature data accumulated during the last decade. The selected Al-Cr-Fe-Mn-V system was used for the interdiffusion experiments. The concentration profiles were evaluated using the numerical combinatorial approach, revealing surprisingly fast diffusion kinetics. The comparison with the available diffusion data for conventional BCC alloys supports recent findings regarding the lack of the ‘sluggish diffusion’ in HEAs.IMPACT STATEMENTThe first-ever experimental study of interdiffusion in BCC-structured high-entropy alloys is conducted, revealing fast diffusion kinetics and providing a further argument against the presence of sluggish diffusion effect in HEAs.https://www.tandfonline.com/doi/10.1080/21663831.2022.2064728DiffusionCALPHADphase diagramthermodynamicshigh-entropy alloys |
| spellingShingle | Marek Zajusz Monika Jawańska Juliusz Dąbrowa Katarzyna Berent Grzegorz Cieślak Tadeusz Kulik Krzysztof Mroczka Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys Materials Research Letters Diffusion CALPHAD phase diagram thermodynamics high-entropy alloys |
| title | Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys |
| title_full | Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys |
| title_fullStr | Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys |
| title_full_unstemmed | Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys |
| title_short | Evaluation of phase stability and diffusion kinetics in novel BCC-structured high entropy alloys |
| title_sort | evaluation of phase stability and diffusion kinetics in novel bcc structured high entropy alloys |
| topic | Diffusion CALPHAD phase diagram thermodynamics high-entropy alloys |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2022.2064728 |
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