Transformation dislocations in Co-Fe

Authors
Heinrich, H Karnthaler, HP Waitz, T Kostorz, G
Citation
H. Heinrich et al., Transformation dislocations in Co-Fe, MAT SCI E A, 272(1), 1999, pp. 238-243
Citations number
17
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
272
Issue
1
Year of publication
1999
Pages
238 - 243
Database
ISI
SICI code
0921-5093(19991115)272:1<238:TDIC>2.0.ZU;2-N
Abstract
High-resolution transmission electron microscopy (HRTEM) studies indicate a compensation of the strain fields of the dislocations involved in the hexa gonal close packed to double hexagonal close packed transformation of Co-Fe . In the HRTEM images only the edge component of the dislocations can be de termined by Burgers circuits whereas the screw components are expected to c ause an Eshelby twist in the thin foils. The influence of the Eshelby twist on HRTEM images was determined by contrast simulations. Dislocation arrang ements with compensating screw components can be distinguished form those w ith non-compensating screw components. (C) 1999 Elsevier Science S.A. All r ights reserved.