Journal
SCRIPTA MATERIALIA
Volume 64, Issue 7, Pages 605-608Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.11.033
Keywords
Metal and alloys; Generalized stacking fault energies; Lattice dislocation and planar fault; Twinning; First-principles calculation
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Funding
- Forschungszentrum Karlsruhe
- Center for Functional Nanostructures, KIT
- Deutsche Forschungsgemeinschaft (DFG)
- National Natural Science Foundation of China [50890174, 50971088]
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Minimum energy paths for generating intrinsic, extrinsic and twin planar faults were calculated for a number of face-centered cubic (fcc) metals via ab initio techniques. It is found that when the lattice is faulted sequentially, the interaction with the existing fault tends to remain minimal for nearly all the fcc metals. Accordingly, a universal scaling law may be deduced based on a single parameter, namely the ratio between the intrinsic stacking fault energy and the relevant energy barrier. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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