Properties of ultrafine-grained steel by repeated shear deformation of side extrusion process

Akira Azushima, Koshiro Aoki

研究成果: Article

60 引用 (Scopus)

抄録

The development of an ultrafine grain size during repeated shear deformation of side extrusion of ultra-low-carbon steel with an initial grain size of approximately 150 μm and a tensile strength of 200 MPa was investigated. Experiments were carried out at room temperature and at a low extrusion speed of 2 mm min-1. Repeated side extrusions with lateral pressure were carried out for up to ten passes for the specimen extruded without rotation (route A). Uniform shear deformation was obtained by the side extrusion with the lateral pressure and an equivalent strain after a single side extrusion was 1.15. After ten passes of the side extrusions, an ultrafine-grained steel with a grain size of 0.5 μm x 0.2 μm was realized and the tensile strength was over 1000 MPa.

元の言語English
ページ(範囲)45-49
ページ数5
ジャーナルMaterials Science and Engineering A
337
発行部数1-2
DOI
出版物ステータスPublished - 2002 11 25
外部発表Yes

Fingerprint

Steel
Shear deformation
Extrusion
steels
shear
grain size
tensile strength
Tensile strength
low carbon steels
Low carbon steel
low speed
routes
Ultrafine
room temperature
Experiments

ASJC Scopus subject areas

  • Materials Science(all)

これを引用

@article{76d0c41fa6b1468eb7e3144cb0cb83a2,
title = "Properties of ultrafine-grained steel by repeated shear deformation of side extrusion process",
abstract = "The development of an ultrafine grain size during repeated shear deformation of side extrusion of ultra-low-carbon steel with an initial grain size of approximately 150 μm and a tensile strength of 200 MPa was investigated. Experiments were carried out at room temperature and at a low extrusion speed of 2 mm min-1. Repeated side extrusions with lateral pressure were carried out for up to ten passes for the specimen extruded without rotation (route A). Uniform shear deformation was obtained by the side extrusion with the lateral pressure and an equivalent strain after a single side extrusion was 1.15. After ten passes of the side extrusions, an ultrafine-grained steel with a grain size of 0.5 μm x 0.2 μm was realized and the tensile strength was over 1000 MPa.",
keywords = "Equal channel angular extrusion, Shear deformation, Side extrusion, Steel, Ultrafine grain, Vickers hardness",
author = "Akira Azushima and Koshiro Aoki",
year = "2002",
month = "11",
day = "25",
doi = "10.1016/S0921-5093(02)00005-9",
language = "English",
volume = "337",
pages = "45--49",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",
number = "1-2",

}

TY - JOUR

T1 - Properties of ultrafine-grained steel by repeated shear deformation of side extrusion process

AU - Azushima, Akira

AU - Aoki, Koshiro

PY - 2002/11/25

Y1 - 2002/11/25

N2 - The development of an ultrafine grain size during repeated shear deformation of side extrusion of ultra-low-carbon steel with an initial grain size of approximately 150 μm and a tensile strength of 200 MPa was investigated. Experiments were carried out at room temperature and at a low extrusion speed of 2 mm min-1. Repeated side extrusions with lateral pressure were carried out for up to ten passes for the specimen extruded without rotation (route A). Uniform shear deformation was obtained by the side extrusion with the lateral pressure and an equivalent strain after a single side extrusion was 1.15. After ten passes of the side extrusions, an ultrafine-grained steel with a grain size of 0.5 μm x 0.2 μm was realized and the tensile strength was over 1000 MPa.

AB - The development of an ultrafine grain size during repeated shear deformation of side extrusion of ultra-low-carbon steel with an initial grain size of approximately 150 μm and a tensile strength of 200 MPa was investigated. Experiments were carried out at room temperature and at a low extrusion speed of 2 mm min-1. Repeated side extrusions with lateral pressure were carried out for up to ten passes for the specimen extruded without rotation (route A). Uniform shear deformation was obtained by the side extrusion with the lateral pressure and an equivalent strain after a single side extrusion was 1.15. After ten passes of the side extrusions, an ultrafine-grained steel with a grain size of 0.5 μm x 0.2 μm was realized and the tensile strength was over 1000 MPa.

KW - Equal channel angular extrusion

KW - Shear deformation

KW - Side extrusion

KW - Steel

KW - Ultrafine grain

KW - Vickers hardness

UR - http://www.scopus.com/inward/record.url?scp=0037176075&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037176075&partnerID=8YFLogxK

U2 - 10.1016/S0921-5093(02)00005-9

DO - 10.1016/S0921-5093(02)00005-9

M3 - Article

AN - SCOPUS:0037176075

VL - 337

SP - 45

EP - 49

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

IS - 1-2

ER -