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Titre du document / Document title

Influence of volume fraction of martensite on the work hardening behaviour of two dual-phase steels with high and low silicon contents

Auteur(s) / Author(s)

NOURI Ashkan (1) ; SAGHAFIAN Hasan (1) ; KHEIRANDISH Shahram (1) ;

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

(1) Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, IRAN, REPUBLIQUE ISLAMIQUE D'

Résumé / Abstract

Two low carbon steels with the same manganese content (approximately 1.6 wt.%) but different silicon contents (0.34 and 2.26 wt.%) with the initial microstructures consisting of ferrite and pearlite were intercritically annealed at five different temperatures followed by water quenching to obtain dual-phase microstructures. The modified Crussard-Jaoul analysis was employed to describe the work hardening behaviour of the dual-phase steels. Both steels exhibited two stages of work hardening in the range of plastic deformation. It is shown that for each stage the work hardening exponent is not constant and varies with volume fraction of martensite and silicon content. The dependence of the transition stress σk and strain εk of dual-phase steels on the annealing temperature is discussed for both steels. It is concluded that εk increases with increasing silicon content and decreases with annealing temperature, while the reverse is true for σk.

Revue / Journal Title

International journal of materials research    ISSN  1862-5282 

Source / Source

2010, vol. 101, no10, pp. 1286-1292 [7 page(s) (article)] (46 ref.)

Langue / Language

Anglais

Editeur / Publisher

Hanser, Munich, ALLEMAGNE  (2006) (Revue)

Mots-clés anglais / English Keywords

Surface treatment

;

Dual phase steel

;

Work hardening

;

Strain hardening

;

Martensite

;

Volume fraction

;

Mots-clés français / French Keywords

Traitement surface

;

Acier double phase

;

Ecrouissage

;

Durcissement déformation

;

Martensite

;

Fraction volumique

;

Mots-clés espagnols / Spanish Keywords

Tratamiento superficie

;

Acero doble fase

;

Endurecimiento en frío

;

Endurecimiento deformación

;

Martensita

;

Fracción volumétrica

;

Mots-clés d'auteur / Author Keywords

Dual-phase steels

;

Silicon

;

Work hardening behaviour

;

Modified Crussard-Jaoul

;

Volume fraction of martensite

;

Localisation / Location

INIST-CNRS, Cote INIST : 271, 35400019273219.0120

Nº notice refdoc (ud4) : 23292376



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