Abstract
First-principles calculations were employed to analyze the possible slip systems in Mo5SiB2. A striking result was obtained that the three most favorable slip systems, <100>(001), <110>(001) and [001]{010}, have close stacking fault energies, and the preference among them cannot be established. This finding explains a large variety of experimentally observed slip systems in Mo5SiB2. The dislocations associated with these slip systems may dissociate into partials joined with stacking faults and separated by the large splitting width of 5–6 nm.
Original language | English |
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Pages (from-to) | 54-57 |
Number of pages | 4 |
Journal | Intermetallics |
Volume | 90 |
DOIs | |
Publication status | Published - Nov 2017 |
Keywords
- Ab initio calculations
- Dislocations
- Molybdenum silicides
- Stacking fault energy
ASJC Scopus subject areas
- Chemistry(all)
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry