Why is the slip direction different in different B2 alloys?

0390913 - FZÚ 2013 RIV GB eng J - Journal Article
Lin, Y.-S. - Cak, M. - Paidar, Václav - Vitek, V.
Why is the slip direction different in different B2 alloys?
Acta Materialia. Roč. 60, č. 3 (2012), s. 881-888. ISSN 1359-6454. E-ISSN 1873-2453
R&D Projects: GA AV ČR IAA100100920
Institutional research plan: CEZ:AV0Z10100520
Keywords : B2 ordered alloys * slip direction * dislocations * gamma-surface * elastic anisotropy
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.941, year: 2012

We show the 1/2(111) anti-phase boundaries may not be metastable faults on {110} planes nad the displacement vectors of metastable stacking-fault-like defects on these planes vary from material to material. This analysis predicts the slip directions for all alloys studied and demonstrates that an interplay of elastic anisotropy, displacement vectos of matastable stacking-fault-like defects and their energies. govern the choice of the slip directiion in any specific B2 alloy.
Permanent Link: http://hdl.handle.net/11104/0219773