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A universal scaling of planar fault energy barriers in face-centered cubic metals

: Jin, Z.H.; Dunham, S.T.; Gleiter, H.; Hahn, H.; Gumbsch, P.

Preprint urn:nbn:de:0011-n-1725423 (808 KByte PDF)
MD5 Fingerprint: 0196ed4612f4f5d71130f2535e509f41
Created on: 13.10.2012

Scripta materialia 64 (2011), No.7, pp.605-608
ISSN: 1359-6462
Journal Article, Electronic Publication
Fraunhofer IWM ()

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.