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Titolo:
Microstructural evolution of 7012 alloy during the early stages of artificial ageing
Autore:
Ferragut, R; Somoza, A; Tolley, A;
Indirizzi:
Univ Nacl Ctr Prov Buenos Aires, IFIMAT, RA-7000 Tandil, Argentina Univ Nacl Ctr Prov Buenos Aires Tandil Argentina RA-7000 ndil, Argentina Comis Invest Cient Prov Buenos Aires, RA-7000 Tandil, Argentina Comis Invest Cient Prov Buenos Aires Tandil Argentina RA-7000 Argentina Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina Comis Nacl Energia Atom San Carlos De Bariloche Rio Negro Argentina RA-8400
Titolo Testata:
ACTA MATERIALIA
fascicolo: 17, volume: 47, anno: 1999,
pagine: 4355 - 4364
SICI:
1359-6454(19991126)47:17<4355:MEO7AD>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZN-MG ALLOY; POSITRON LIFETIME SPECTROSCOPY; DECOMPOSITION PROCESSES; ELECTRON-MICROSCOPY; PRECIPITATION; ZONES;
Keywords:
aluminium; ageing; phase transformations; transmission electron microscopy; positron annihilation spectroscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Somoza, A Univ Nacl Ctr Prov Buenos Aires, IFIMAT, Pinto 399, RA-7000 Tandil, Argentina Univ Nacl Ctr Prov Buenos Aires Pinto 399 Tandil Argentina RA-7000
Citazione:
R. Ferragut et al., "Microstructural evolution of 7012 alloy during the early stages of artificial ageing", ACT MATER, 47(17), 1999, pp. 4355-4364

Abstract

A study of the microstructural evolution of a commercial 7012 (Al-Zn-Mg-Cu) age-hardenable alloy following artificial ageing by high resolution and conventional transmission electron microscopy and positron annihilation lifetime spectroscopy is presented. At the early stages of decomposition. the microstructure included precipitation of either pre-precipitate solute clusters or Guinier-Preston zones and semicoherent eta' precipitates, with typical sizes between 1 and 10 nm. Quantitative information on the size, number density and morphology of the particles present in the microstructure was obtained. The results were correlated with those obtained using positron annihilation lifetime spectroscopy. (C) 1999 Acta Metallurgica. Published by Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 15:01:51