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Titolo:
Deformation of Co3AlC0.5 and a Co3AlC0.5-strengthened cobalt-based alloy
Autore:
Wei, FG; Hwang, KY; Mishima, Y;
Indirizzi:
Tokyo Inst Technol, Dept Mat Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan Tokyo Inst Technol Yokohama Kanagawa Japan 2268502 anagawa 2268502, Japan
Titolo Testata:
INTERMETALLICS
fascicolo: 8, volume: 9, anno: 2001,
pagine: 671 - 679
SICI:
0966-9795(200108)9:8<671:DOCAAC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMIC DISORDER;
Keywords:
aluminides; miscellaneous; plastic deformation mechanisms; defects; antiphase domains; defects; dislocation geometry and arrangement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Wei, FG Tokyo Inst Technol, Dept Mat Sci & Engn, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268502, Japan Tokyo Inst Technol 4259 Nagatsuta Yokohama Kanagawa Japan 2268502
Citazione:
F.G. Wei et al., "Deformation of Co3AlC0.5 and a Co3AlC0.5-strengthened cobalt-based alloy", INTERMETALL, 9(8), 2001, pp. 671-679

Abstract

Plastic deformation features Of Co3AlC0.5, and a Co3AlC0.5-strengthened cobalt-based alloy were studied by means of transmission electron microscopy. It was found that < 110 > {111} slip system is activated and dissociation of superlattice dislocations occurs in Co3AlC0.5 in a manner similar to theLl(2) structure. However, in contrast to the Ll(2) structure, motion of dislocations is hindered by the pre-existing thermally grown-in anti-phase boundaries formed by wrong site occupation of carbon atoms, a unique type of crystal defects in Co3AlC0.5. On the other hand. deformation of the a(Co) alloy containing fine Co3AlC0.5. precipitates is characterized by localized slip of 1/6 < 211 > Shockley partial dislocations cutting through the fine Co3AlC0.5 particles.. leaving behind a highly disordered band region. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 01:12:25