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 1 2017 |
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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
Cite this
Deformation behavior of Mo5SiB2. / Medvedeva, N. I.; Kontsevoi, O. Y.; Freeman, Arthur J; Perepezko, J. H.
In: Intermetallics, Vol. 90, 01.11.2017, p. 54-57.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Deformation behavior of Mo5SiB2
AU - Medvedeva, N. I.
AU - Kontsevoi, O. Y.
AU - Freeman, Arthur J
AU - Perepezko, J. H.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - 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.
AB - 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.
KW - Ab initio calculations
KW - Dislocations
KW - Molybdenum silicides
KW - Stacking fault energy
UR - http://www.scopus.com/inward/record.url?scp=85021718202&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021718202&partnerID=8YFLogxK
U2 - 10.1016/j.intermet.2017.07.001
DO - 10.1016/j.intermet.2017.07.001
M3 - Article
AN - SCOPUS:85021718202
VL - 90
SP - 54
EP - 57
JO - Intermetallics
JF - Intermetallics
SN - 0966-9795
ER -