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Titre du document / Document title

The effect of heat treatment on mechanical properties and corrosion behavior of AISI420 martensitic stainless steel

Auteur(s) / Author(s)

NASERY ISFAHANY A. (1) ; SAGHAFIAN H. (1) ; BORHANI G. (2) ;

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

(1) Iran University of Science and Technology, IRAN, REPUBLIQUE ISLAMIQUE D'
(2) University of Isfahan, IRAN, REPUBLIQUE ISLAMIQUE D'

Résumé / Abstract

Martensitic stainless steels are widely used for their good mechanical properties and moderate corrosion resistance. However, the need for superior properties in specific applications (e.g. steam generators, mixer blades, etc.) led to wide researches on the performance improvement of these steels. Heat treatment was recommended as one of the best ways to this regard hence the effects of astenitizing temperature and time, and tempering temperature on the microstructure, mechanical and corrosion properties of AISI420 have been studied. In the current work the experimental results showed that the austeitizing temperature significantly affects mechanical properties. The increase of tempering temperature led to precipitation of M7C3 and secondary hardening in the range of 400-500°C. SEM micrographs of the fracture surfaces showed a mixed fracture mechanism (brittle and ductile) at 200°C and 700°C and brittle mechanism at 500 °C. The Polarization curves were not significantly affected by the increment of austenitizing temperature.

Revue / Journal Title

Journal of alloys and compounds    ISSN  0925-8388 

Source / Source

2011, vol. 509, no9, pp. 3931-3936 [6 page(s) (article)] (13 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1991) (Revue)

Mots-clés anglais / English Keywords

Austenitizing

;

Polarization

;

Ductile-brittle transitions

;

Brittle fracture

;

Fractography

;

Scanning electron microscopy

;

Secondary hardening

;

Precipitation

;

Experimental result

;

Microstructure

;

Temperature dependence

;

Tempering

;

Steam

;

Corrosion resistance

;

Martensitic stainless steel

;

Corrosion

;

Mechanical properties

;

Mechanical treatment

;

Heat treatments

;

Mots-clés français / French Keywords

6220M

;

8130M

;

Austénisation

;

Polarisation

;

Transition ductile fragile

;

Rupture fragile

;

Fractographie

;

Microscopie électronique balayage

;

Trempe secondaire

;

Précipitation

;

Résultat expérimental

;

Microstructure

;

Dépendance température

;

Revenu

;

Vapeur eau

;

Résistance corrosion

;

Acier inoxydable martensitique

;

Corrosion

;

Propriété mécanique

;

Traitement mécanique

;

Traitement thermique

;

Mots-clés espagnols / Spanish Keywords

Temple secundario

;

Resultado experimental

;

Acero inoxidable martensítico

;

Tratamiento mecánico

;

Mots-clés d'auteur / Author Keywords

Martensitic stainless steel AISI 420

;

Heat treatment

;

Fractography

;

Corrosion

;

Localisation / Location

INIST-CNRS, Cote INIST : 1151, 35400019368753.0410

Nº notice refdoc (ud4) : 23885160



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