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Titolo:
The effect of annealing on the microstructure and tensile properties of a beta/gamma ' Ni-Al-Fe alloy
Autore:
Pekarskaya, E; Botton, GA; Jones, CN; Humphreys, CJ;
Indirizzi:
Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England Univ Cambridge Cambridge England CB2 3QZ Met, Cambridge CB2 3QZ, England Rolls Royce PLC, Derby DE24 8BJ, England Rolls Royce PLC Derby England DE24 8BJ oyce PLC, Derby DE24 8BJ, England
Titolo Testata:
INTERMETALLICS
fascicolo: 8, volume: 8, anno: 2000,
pagine: 903 - 913
SICI:
0966-9795(200008)8:8<903:TEOAOT>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPERATURE DEFORMATION-BEHAVIOR; MECHANICAL-PROPERTIES; MARTENSITIC-TRANSFORMATION; INTERMETALLIC COMPOUNDS; CONSTITUENT PHASES; MULTIPHASE NI-20; PERCENT AL-30; DUCTILITY; SYSTEMS; MICROSCOPY;
Keywords:
multiphase intermetallics; mechanical properties at ambient temperature; phase transformations; microstructure; electron microscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Pekarskaya, E CALTECH, Mail Code 138-78, Pasadena, CA 91125 USA CALTECH Mail Code 138-78 Pasadena CA USA 91125 CA 91125 USA
Citazione:
E. Pekarskaya et al., "The effect of annealing on the microstructure and tensile properties of a beta/gamma ' Ni-Al-Fe alloy", INTERMETALL, 8(8), 2000, pp. 903-913

Abstract

The evolution of the microstructure of a (beta/gamma') Ni-32 at.% Al-5 at.% Fe alloy during annealing has been studied by electron microscopy and X-ray diffraction. Annealing at 800 degrees C and 1100 degrees C causes a reverse martensitic transformation, L1(0) --> B2 (beta), and a B2 --> L1(2) (gamma') phase transformation. The lower annealing temperature leads to a higher volume fraction of the gamma'-phase but a smaller size of the gamma'-particles. The kinetic laws of the coarsening and of the increase in the Volume fraction of the gamma'-phase an discussed. The orientation relationships between the beta and gamma' phases appeared to be mainly of Nishiyama-Wassermann and Bain types after 800 degrees C annealing, while Kurdjumov-Sachs and Bain orientation relationships were predominant in the alloys annealed at 1100 degrees C. A strong correlation between the volume fraction of the gamma'-phase and the tensile characteristics of the alloy has been established. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 00:58:00