Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation”
This work comments on a recent publication by Hajra et al. (Mater. Design 236 (2023) 112483), which claims to have presented compelling experimental and theoretical evidence in favour of the existence of an equilibrium C14-NbCr2 high-temperature Laves phase in the Cr-Nb system. In the present commen...
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Elsevier
2024-11-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524007482 |
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| author | Andreas Leineweber Frank Stein |
| author_facet | Andreas Leineweber Frank Stein |
| author_sort | Andreas Leineweber |
| collection | DOAJ |
| description | This work comments on a recent publication by Hajra et al. (Mater. Design 236 (2023) 112483), which claims to have presented compelling experimental and theoretical evidence in favour of the existence of an equilibrium C14-NbCr2 high-temperature Laves phase in the Cr-Nb system. In the present comment, evidence and conclusions reported in the paper of Hajra et al. are critically put into context of insight from previous works. From this it is concluded here, that the evidence in favour of an equilibrium C14-NbCr2 high-temperature Laves phase is, by far, not that compelling as claimed by Hajra et al.. Instead, the most direct evidence presented in the literature does not support the existence of an equilibrium C14-NbCr2 high-temperature Laves phase. Alternative interpretations of Hajra et al.’s evidence and conclusions are offered, and it is elaborated, which true gaps in knowledge exist concerning the Laves phases in the Cr-Nb system. |
| format | Article |
| id | doaj-art-7beecfdaae324ba08f215a54b8846ce6 |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-7beecfdaae324ba08f215a54b8846ce62025-08-20T02:18:55ZengElsevierMaterials & Design0264-12752024-11-0124711337310.1016/j.matdes.2024.113373Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation”Andreas Leineweber0Frank Stein1Institute of Materials Science, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599 Freiberg, Germany; Corresponding author.Max Planck Institute for Sustainable Materials, Max-Planck-Str. 1, 40237 Düsseldorf, GermanyThis work comments on a recent publication by Hajra et al. (Mater. Design 236 (2023) 112483), which claims to have presented compelling experimental and theoretical evidence in favour of the existence of an equilibrium C14-NbCr2 high-temperature Laves phase in the Cr-Nb system. In the present comment, evidence and conclusions reported in the paper of Hajra et al. are critically put into context of insight from previous works. From this it is concluded here, that the evidence in favour of an equilibrium C14-NbCr2 high-temperature Laves phase is, by far, not that compelling as claimed by Hajra et al.. Instead, the most direct evidence presented in the literature does not support the existence of an equilibrium C14-NbCr2 high-temperature Laves phase. Alternative interpretations of Hajra et al.’s evidence and conclusions are offered, and it is elaborated, which true gaps in knowledge exist concerning the Laves phases in the Cr-Nb system.http://www.sciencedirect.com/science/article/pii/S0264127524007482IntermetallicsPhase equilibriaLaves phasesMetastable phases |
| spellingShingle | Andreas Leineweber Frank Stein Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” Materials & Design Intermetallics Phase equilibria Laves phases Metastable phases |
| title | Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” |
| title_full | Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” |
| title_fullStr | Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” |
| title_full_unstemmed | Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” |
| title_short | Comment on Hajra et al.: “High-temperature phase stability and phase transformations of Niobium-Chromium Laves phase: Experimental and first-principles calculation” |
| title_sort | comment on hajra et al high temperature phase stability and phase transformations of niobium chromium laves phase experimental and first principles calculation |
| topic | Intermetallics Phase equilibria Laves phases Metastable phases |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524007482 |
| work_keys_str_mv | AT andreasleineweber commentonhajraetalhightemperaturephasestabilityandphasetransformationsofniobiumchromiumlavesphaseexperimentalandfirstprinciplescalculation AT frankstein commentonhajraetalhightemperaturephasestabilityandphasetransformationsofniobiumchromiumlavesphaseexperimentalandfirstprinciplescalculation |