Simulation of the process of deformation-induced destruction of long-range order in alloys with an L12 superstructure
| Autor: | O. D. Pantyukhova, S. V. Starenchenko, V. A. Starenchenko |
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| Rok vydání: | 2002 |
| Předmět: |
Condensed Matter::Materials Science
Materials science Solid-state physics Condensed matter physics Partial dislocations Climb Allowance (engineering) Dislocation Deformation (engineering) Condensed Matter Physics Superstructure (condensed matter) Crystallographic defect Electronic Optical and Magnetic Materials |
| Zdroj: | Physics of the Solid State. 44:994-1002 |
| ISSN: | 1090-6460 1063-7834 |
| Popis: | Plastic-deformation-induced destruction of long-range order in alloys with an L12 superstructure is considered. A mathematical model is suggested which takes into account the following mechanisms that lead to the destruction of long-range order: generation of superdislocations, generation of single dislocations, multiplication of antiphase boundaries (APBs) upon the conservative motion of dislocations, multiplication of APBs upon dislocation climb, formation of APB tubes on superdislocations, generation of point defects, and thermal ordering. A mathematical model of deformation strengthening and long-range order destruction with allowance for the change in the type of shear-forming dislocations from superdislocations to single dislocations is formulated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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