TY  - JOUR
AU  - Heggen, Marc
AU  - Feuerbacher, Michael
TI  - Metadislocations: The case of pure glide
JO  - MRS online proceedings library
VL  - 1517
SN  - 1946-4274
CY  - Warrendale, Pa.
PB  - MRS
M1  - FZJ-2013-02043
PY  - 2013
AB  - Metadislocations are highly complex and pivotal defects mediating plastic deformation in complex metallic alloys. Here, we review recent results on the structure of metadislocations in the phases T-Al-Mn-Pd, T-Al-Mn-Fe and o-Al13Co4. In these materials, metadislocation motion is of particular interest as it takes place by pure glide in contrast to most other complex metallic alloys. Recently, novel metadislocations were found in the T-phase [1]. They have Burgers vectors (n = 2, 3, 4) and are associated to two, four and six planar defects, respectively. The type of planar defect depends on the deformation geometry. Metadislocation glide creates (1 0 0) stacking faults and climb creates (0 0 1) phason planes. Metadislocation glide was observed in the o-Al13Co4 phase, as well [2]. The close structural relation of metadislocations in the phases T-Al-Mn-Pd, T-Al-Mn-Fe, Al13Co4 and ε6-Al-Pd-Mn is discussed
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1557/opl.2012.1754
UR  - https://juser.fz-juelich.de/record/133628
ER  -