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 language | English |
|---|---|
| Pages (from-to) | 762-766 |
| Number of pages | 5 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 87 |
| Issue number | 12 |
| Publication status | Published - 2001 Dec |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Properties of ultra low carbon steel produced by repetitive shear deformation of side extrusion
AU - Azushima, Akira
AU - Aoki, Koshiro
AU - Inoue, Takeshi
PY - 2001/12
Y1 - 2001/12
N2 - 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.
AB - 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.
KW - ECAE
KW - Shear deformation
KW - Side extrusion
KW - Steel
KW - Ultrafine grain
UR - http://www.scopus.com/inward/record.url?scp=0035696657&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035696657&partnerID=8YFLogxK
M3 - Article
VL - 87
SP - 762
EP - 766
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 12
ER -