Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Deformation structure during creep deformation in soft orientation PST crystals
Autore:
Kim, HY; Maruyama, K;
Indirizzi:
Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 ci, Sendai, Miyagi 9808579, Japan
Titolo Testata:
INTERMETALLICS
fascicolo: 10-11, volume: 9, anno: 2001,
pagine: 929 - 935
SICI:
0966-9795(200110/11)9:10-11<929:DSDCDI>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYSYNTHETICALLY TWINNED CRYSTALS; GAMMA-TITANIUM ALUMINIDES; TIAL ALLOYS; LAMELLAR; BEHAVIOR; AL;
Keywords:
titanium aluminides, based on TiAl; creep (properties and mechanisms); plastic deformation mechanisms; electron microscopy; transmission;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, HY Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Aobayama 02, Sendai, Miyagi 9808579, Japan Tohoku Univ Aobayama 02 Sendai Miyagi Japan 9808579 9808579, Japan
Citazione:
H.Y. Kim e K. Maruyama, "Deformation structure during creep deformation in soft orientation PST crystals", INTERMETALL, 9(10-11), 2001, pp. 929-935

Abstract

Deformation microstructure of soft polysynthetically twinned (PST) crystals Ti-48A1 was investigated. The soft orientation with the lamellar plates oriented 35 degrees to compression axis was deformed at 1150 K under appliedstresses of 100-251 MPa. Macroscopically anisotropic deformation was observed after creep deformation. Deformation took place in the maximum shear stress direction in the soft orientation. Dislocation structures in domains of six different variants were examined by transmission electron microscopy. Operative slip and twinning systems were also analysed. Macroscopic plastic strain and strain compatibility at domain and lamellar boundaries were discussed in terms of the slip systems in each domain. Refinement of lamellaroccurred by mechanical twinning during creep deformation. (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 24/10/20 alle ore 11:29:10