Ab initio identified design principles of solid-solution strengthening in Al
Solid-solution strengthening in six Al–X binary systems is investigated using first-principle methods. The volumetric mismatch parameter and the solubility enthalpy per solute were calculated. We derive three rules for designing solid-solution strengthened alloys: (i) the solubility enthalpy per sol...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2013-01-01
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| Series: | Science and Technology of Advanced Materials |
| Online Access: | http://dx.doi.org/10.1088/1468-6996/14/2/025001 |
| _version_ | 1819203048320270336 |
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| author | Duancheng Ma, Martin Friák, Johann von Pezold, Dierk Raabe and Jörg Neugebauer |
| author_facet | Duancheng Ma, Martin Friák, Johann von Pezold, Dierk Raabe and Jörg Neugebauer |
| author_sort | Duancheng Ma, Martin Friák, Johann von Pezold, Dierk Raabe and Jörg Neugebauer |
| collection | DOAJ |
| description | Solid-solution strengthening in six Al–X binary systems is investigated using first-principle methods. The volumetric mismatch parameter and the solubility enthalpy per solute were calculated. We derive three rules for designing solid-solution strengthened alloys: (i) the solubility enthalpy per solute is related to the volumetric mismatch by a power law; (ii) for each annealing temperature, there exists an optimal solute–volume mismatch to achieve maximum strength; and (iii) the strengthening potential of high volumetric mismatch solutes is severely limited by their low solubility. Our results thus show that the thermodynamic properties of the system (here Al–X alloys) set clear upper bounds to the achievable strengthening effects owing to the reduced solubility with increasing volume mismatch. |
| first_indexed | 2024-12-23T04:13:43Z |
| format | Article |
| id | doaj.art-cdc83c2359e541cf8bad4cceeaf8fc9f |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-23T04:13:43Z |
| publishDate | 2013-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-cdc83c2359e541cf8bad4cceeaf8fc9f2022-12-21T18:00:26ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142013-01-01142025001Ab initio identified design principles of solid-solution strengthening in AlDuancheng Ma, Martin Friák, Johann von Pezold, Dierk Raabe and Jörg NeugebauerSolid-solution strengthening in six Al–X binary systems is investigated using first-principle methods. The volumetric mismatch parameter and the solubility enthalpy per solute were calculated. We derive three rules for designing solid-solution strengthened alloys: (i) the solubility enthalpy per solute is related to the volumetric mismatch by a power law; (ii) for each annealing temperature, there exists an optimal solute–volume mismatch to achieve maximum strength; and (iii) the strengthening potential of high volumetric mismatch solutes is severely limited by their low solubility. Our results thus show that the thermodynamic properties of the system (here Al–X alloys) set clear upper bounds to the achievable strengthening effects owing to the reduced solubility with increasing volume mismatch.http://dx.doi.org/10.1088/1468-6996/14/2/025001 |
| spellingShingle | Duancheng Ma, Martin Friák, Johann von Pezold, Dierk Raabe and Jörg Neugebauer Ab initio identified design principles of solid-solution strengthening in Al Science and Technology of Advanced Materials |
| title | Ab initio identified design principles of solid-solution strengthening in Al |
| title_full | Ab initio identified design principles of solid-solution strengthening in Al |
| title_fullStr | Ab initio identified design principles of solid-solution strengthening in Al |
| title_full_unstemmed | Ab initio identified design principles of solid-solution strengthening in Al |
| title_short | Ab initio identified design principles of solid-solution strengthening in Al |
| title_sort | ab initio identified design principles of solid solution strengthening in al |
| url | http://dx.doi.org/10.1088/1468-6996/14/2/025001 |
| work_keys_str_mv | AT duanchengmamartinfriakjohannvonpezolddierkraabeandjorgneugebauer abinitioidentifieddesignprinciplesofsolidsolutionstrengtheninginal |