On the concept of metadislocations in complex metallic alloys

Abstract

Metadislocations are a novel type of structural defect in complex metallic alloys. We present an experimental characterization of metadislocation loops in ξ′-Al–Pd–Mn by means of transmission electron microscopy. Furthermore we discuss the mode of metadislocation motion (glide vs. climb) and the geometrical structure of metadislocations in other orthorhombic complex metallic alloys.

Acknowledgements

The authors thank S. Balanetskyy and B. Grushko for inspiring discussions. Carsten Thomas and Marita Schmidt are thanked for performing the growth of single crystals.