On extending dislocation notions to the amorphous state of solids

Authors
Bengus, VZ Tabachnikova, ED
Citation
Vz. Bengus et Ed. Tabachnikova, On extending dislocation notions to the amorphous state of solids, MAT SCI E A, 309, 2001, pp. 544-547
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
309
Year of publication
2001
Pages
544 - 547
Database
ISI
SICI code
0921-5093(20010715)309:<544:OEDNTT>2.0.ZU;2-U
Abstract
Anomalies (minima of sigma (fp)) are discovered in composition dependencies of the critical stress sigma (fp) for catastrophic shear of the Fe100-xBx, Fe80-xNixB20 and Fe85-xCoxB15 amorphous alloys. These minima correspond to the eutectic (x = 17) in the Fe-B system, to x = 40 in the Fe-Ni-B system and to x = 40 and 21 in the Fe-Co-B system. Considering mobile dislocations in amorphous alloys located at boundaries between nanoclusters makes it po ssible to explain and to predict anomalous (non-monotonous) composition dep endencies of mechanical properties of amorphous alloys. (C) 2001 Elsevier S cience B.V. All rights reserved.