Properties of ultra low carbon steel produced by repetitive shear deformation of side extrusion

Akira Azushima, Koshiro Aoki, Takeshi Inoue

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Ultrafine grained microstructure was produced by repetitive deformation using the side-extrusion method from ultra low carbon steel with an initial grain size of about 150 μm. The repetitive deformations were imposed at a low extrusion speed of 2 mn/min at room temperature. The side-extrusions with lateral pressure were repeated up to 10 passes without rotation. The sample was uniformly deformed by the side-extrusion, and the equivalent strain was 1.15 after a single pass of the side-extrusion. The ultimate tensile strength increased from 200 MPa with an increasing number of side extrusion passes. After 10 passes of side-extrusion, an ultrafine grained steel with a tensile strength of over 1000 MPa and a grain size of 0.5 μm×0.2 μm was developed.

Original languageEnglish
Pages (from-to)762-766
Number of pages5
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume87
Issue number12
Publication statusPublished - 2001 Dec
Externally publishedYes

Fingerprint

low carbon steels
Low carbon steel
Shear deformation
Extrusion
shear
tensile strength
grain size
Tensile strength
Steel
low speed
steels
microstructure
room temperature
Microstructure

Keywords

  • ECAE
  • Shear deformation
  • Side extrusion
  • Steel
  • Ultrafine grain

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Properties of ultra low carbon steel produced by repetitive shear deformation of side extrusion. / Azushima, Akira; Aoki, Koshiro; Inoue, Takeshi.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 87, No. 12, 12.2001, p. 762-766.

Research output: Contribution to journalArticle

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