• Supersaturated vacancies and v...

Treffer: Supersaturated vacancies and vacancy complexes in rapidly solidified B2 aluminide ribbons

Title:
Supersaturated vacancies and vacancy complexes in rapidly solidified B2 aluminide ribbons
Authors:
NAKAMURA, Ryusuke, YOSHIMI, Kyosuke, TSUREKAWA, Sadahiro
Source:
Proceedings of the 12th International Conference on Rapidly Quenched & Metastable Materials, Jeju Island, 21-26 August 2005Materials science & engineering. A, Structural materials : properties, microstructure and processing. 449-451:1036-1040
Publisher Information:
Amsterdam: Elsevier, 2007.
Publication Year:
2007
Physical Description:
print, 20 ref
Original Material:
INIST-CNRS
Subject Terms:
Crystallography, Cristallographie cristallogenèse, Chemical industry parachemical industry, Industrie chimique et parachimique, Metallurgy, welding, Métallurgie, soudage, Condensed state physics, Physique de l'état condensé, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Etat condense: structure, proprietes mecaniques et thermiques, Condensed matter: structure, mechanical and thermal properties, Structure des liquides et des solides; cristallographie, Structure of solids and liquids; crystallography, Défauts et impuretés dans les cristaux; microstructure, Defects and impurities in crystals; microstructure, Défauts ponctuels (lacunes, interstitiels, centres colorés, etc.) et agrégats de défauts, Point defects (vacancies, interstitials, color centers, etc.) and defect clusters, Domaines interdisciplinaires: science des materiaux; rheologie, Cross-disciplinary physics: materials science; rheology, Science des matériaux, Materials science, Diagrammes de phases et microstructures développées par solidification et par transformations de phases solide-solide, Phase diagrams and microstructures developed by solidification and solid-solid phase transformations, Solidification, Aluminium alliage, Aluminium alloys, Boucle dislocation, Dislocation loops, Cavité dans réseau, Voids, Densité dislocation, Dislocation density, Défaut complexe, Complex defect, Defecto complejo, Formation défaut, Defect formation, Formación defecto, Microscopie électronique transmission, Transmission electron microscopy, Microstructure, Nickel alliage, Nickel alloys, Recuit, Annealing, Solidification rapide, Rapid solidification, Sursaturation, Supersaturation, Traitement thermique, Heat treatments, Vieillissement, Aging, 6172J, B2-type aluminides, Dislocation, Rapidly solidified ribbon, Supersaturated vacancies, Void
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Institute for Materials Research, Tohoku University, Katahira 2-1-1, Sendai 980-8577, Japan
Department of Nanomechanics, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6, Sendai 980-8579, Japan
ISSN:
0921-5093
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=18627387
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics and materials science

Physics of condensed state: structure, mechanical and thermal properties
Accession Number:
edscal.18627387
Database:
PASCAL Archive

Weitere Informationen

The formation of vacancy complexes through aging heat treatments between 800 and 1200 K was studied for rapidly solidified NiAl and CoAl ribbons using TEM. In the case of the NiAl ribbons, the density of dislocations decreased with increasing annealing temperature, while voids with tens to a hundred nanometers in size were formed in a low density. In the CoAl ribbons, noteworthy microstructures of dislocations and voids appeared after annealing. A zone consisting of dislocation loops, in which prismatic loops 20-50 nm in diameter had formed at high density, was found in the CoAl ribbons annealed at 800 K for 360 ks. On the other hand, voids with a size of several nanometers and a remarkably high density were formed by annealing not only at 800 K but also at 1200 K, suggesting that the growth rate of voids is extremely low because of low diffusivity in CoAl.