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Titre du document / Document title

Dislocations in Fe-45 at.% Al + B after high-temperature deformation

Auteur(s) / Author(s)

MUNROE P. R. (1) ; BAKER I. ;

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

(1) Monash univ., materials eng., Clayton Victoria 3168, AUSTRALIE

Résumé / Abstract

The dislocation structures of large-grained low-temperature-annealed Fe-45at.%Al+B specimens strained to failure over the temperature range 400-1000K have been investigated using transmission electron microscopy. Up to and including 700 K, only <111> slip was observed but, in specimens strained at 800 K and above, both <111> and <001> slip were observed. The onset of <001> slip at 800 K coincides with the temperature at which a peak in the yield stress occurs in this alloy as shown by Klein and Baker in 1994. Optical metallography showed no evidence of either grain-boundary migration or dynamic recrystallization but, at 1000K, both static recrystallization and significant cavitation were noted. Cavitation is a feature common to solute-containing alloys.

Revue / Journal Title

Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties    ISSN  1364-2804 

Source / Source

1995, vol. 72, no5, pp. 1301-1310 (26 ref.)

Langue / Language

Anglais

Editeur / Publisher

Taylor & Francis, London, ROYAUME-UNI  (1995-2002) (Revue)

Mots-clés anglais / English Keywords

Experimental study

;

Dislocations

;

TEM

;

Binary alloys

;

Iron base alloys

;

Aluminium alloys

;

Substructure

;

Impurities

;

Boron additions

;

Thermal annealing

;

Deformation

;

Transition element alloys

;

Mots-clés français / French Keywords

Etude expérimentale

;

Dislocation

;

TEM

;

Alliage binaire

;

Alliage base fer

;

Aluminium alliage

;

Sous structure

;

Impureté

;

Addition bore

;

Recuit thermique

;

Déformation

;

Alliage Fe72Al28

;

Al Fe

;

Métal transition alliage

;

Mots-clés espagnols / Spanish Keywords

Subestructura

;

Recocido térmico

;

Localisation / Location

INIST-CNRS, Cote INIST : 134 A1, 35400005213278.0110

Nº notice refdoc (ud4) : 3147139



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