A new route to fabricate ultrafine-grained structures in carbon steels without severe plastic deformation

A new route to fabricate ultrafine-grained ferritic steel without severe plastic deformation is described. A low-carbon steel sheet with a duplex microstructure composed of ferrite and martensite was cold-rolled to 91% reduction in thickness, and then annealed at 620–655 °C. The microstructure obtai...

Full description

Saved in:
Bibliographic Details
Published inScripta materialia Vol. 60; no. 2; pp. 76 - 79
Main Authors Okitsu, Yoshitaka, Takata, Naoki, Tsuji, Nobuhiro
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2009
Subjects
Annealing
Cold rolling
Dual phases
Ferrite
Ferritic steels
Grain size
Martensite
Microstructure
Plastic deformation
Severe plastic deformation (SPD)
Sheet metal
Structural steels
Ultrafine grain
Ferritic steels
Ultrafine grain
Severe plastic deformation (SPD)
Martensite
Dual phases
Online AccessGet full text

Cover

More Information
Summary:A new route to fabricate ultrafine-grained ferritic steel without severe plastic deformation is described. A low-carbon steel sheet with a duplex microstructure composed of ferrite and martensite was cold-rolled to 91% reduction in thickness, and then annealed at 620–655 °C. The microstructure obtained via this process was fully annealed ultrafine grains of ferrite including homogenously dispersed cementite particles. The mean ferrite grain sizes obtained were 0.49–0.85 μm.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2008.09.002