Atomic scale observation of Cottrell atmospheres in B-doped FeAl (B2) by 3D atom probe field ion microscopy

Authors
Cadel, E Fraczkiewicz, A Blavette, D
Citation
E. Cadel et al., Atomic scale observation of Cottrell atmospheres in B-doped FeAl (B2) by 3D atom probe field ion microscopy, MAT SCI E A, 309, 2001, pp. 32-37
Citations number
20
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
32 - 37
Database
ISI
SICI code
0921-5093(20010715)309:<32:ASOOCA>2.0.ZU;2-8
Abstract
Three-dimensional atom probe method (3DAP) coupled with field ion microscop y (FIM) was used to study the nano-scale boron segregation to dislocations in B2-ordered FeAl (40 at.% Al). A boron-rich Cottrell atmosphere near an e dge <1 0 0 > dislocation was imaged with atomic resolution and its chemical composition was analysed at local scale. Some macroscopic effects of boron segregation to crystal defects, which are related to the segregation pheno mena, are also discussed. (C) 2001 Elsevier Science B.V. All rights reserve d.