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Titre du document / Document title

Room temperature deformation modes in DO3-structured Fe-34Al and Fe-28Al-6Cr

Auteur(s) / Author(s)

MUNROE P. R. (1) ; BAKER I. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Univ. New South Wales, school materials sci. eng., Kensington NSW 2033, AUSTRALIE

Résumé / Abstract

The dislocation substructures in the D03-structured alloys, Fe-34Al and Fe-28Al-6Cr, were examined by transmission electron microscopy following room temperature compression. In both alloys a small number of a <001> dislocations, produced through the energetically favourable interaction of two pairs of antiphase boundary-coupled a/2<111> dislocations, was observed. It was also found that, relative to the binary alloy, one effect of the chromium addition was to increase the B2 character of the alloy, but conversely to decrease the DO3 character. These results are rationalized on the basis of the atom site location of the chromium atoms in the DO3 structure

Revue / Journal Title

Journal of materials science    ISSN  0022-2461   CODEN JMTSAS 

Source / Source

1993, vol. 28, no9, pp. 2299-2303 (21 ref.)

Langue / Language

Anglais

Editeur / Publisher

Springer, Heidelberg, ALLEMAGNE  (1966) (Revue)

Mots-clés anglais / English Keywords

Deformation

;

Room temperature

;

Experimental study

;

Dislocation structure

;

Iron alloy

;

Iron Aluminium Alloys

;

Iron Aluminium Chromium Alloys

;

Composition effect

;

Chromium addition

;

Mechanical properties

;

Mots-clés français / French Keywords

Déformation

;

Température ambiante

;

Etude expérimentale

;

Structure dislocation

;

Fer alliage

;

Fer Aluminium Alliage

;

Fer Aluminium Chrome Alliage

;

Effet composition

;

Addition chrome

;

Propriété mécanique

;

Mots-clés espagnols / Spanish Keywords

Deformación

;

Temperatura ambiente

;

Estudio experimental

;

Estructura dislocación

;

Hierro aleación

;

Hierro Aluminio Aleación

;

Hierro Aluminio Cromo Aleación

;

Efecto composición

;

Adición cromo

;

Propiedad mecánica

;

Localisation / Location

INIST-CNRS, Cote INIST : 12733, 35400003604098.0050

Nº notice refdoc (ud4) : 4816054



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