Effect of Lubrication Condition on Recrystallization Texture of Ultra-low C Sheet Steel Hot-rolled in Ferrite Region

Saiji Matsuoka, Masahiko Morita, Osamu Furukimi, Takashi Obara

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The application of the EBSD technique with an SEM provides a new approach to the analysis of variations of the recrystallization texture in the thickness direction of ultra-low carbon sheet steels rolled in the ferrite region. A nonuniform recrystallization texture through the thickness is formed due to the additional shear strain introduced by frictional force between the rolls and the material in sheet steel rolled with a friction coefficient over 0.15, 〈110〉//ND recrystallized grains being formed near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains being formed at the mid plane. On the other hand, 〈110〉//ND recrystallized grains are not formed preferentially near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains are formed uniformly throughout the thickness in sheet steel rolled with a friction coefficient under 0.15. Orientation imaging also reveals differences related to the tolerance of 〈110〉//ND recrystallized grains around the 〈110〉//ND axis in sheet steel rolled without lubrication, in that 〈110〉//ND grains with a small tolerance form at the 1/10 plane from the surface and 〈110〉//ND grains with larger tolerances form at thickness locations from the 1/10 plane toward the surface and center. The r-value depends on the friction coefficient and increases significantly as the friction coefficient decreases under 0.15, resulting in high r-values over 1.2. This change in the r-value with the friction coefficient corresponds to the distribution of the recrystallization texture through the thickness. Orientation imaging allows a more visual and intuitive understanding of the nonuniformity of the recrystallization texture than conventional methods such as optical microscopy and X-ray diffraction measurement.

Original languageEnglish
Pages (from-to)633-639
Number of pages7
Journalisij international
Volume38
Issue number6
DOIs
Publication statusPublished - Jan 1 1998

Fingerprint

Steel sheet
Lubrication
Ferrite
Textures
Friction
Imaging techniques
Shear strain
Optical microscopy
Carbon
X ray diffraction
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Effect of Lubrication Condition on Recrystallization Texture of Ultra-low C Sheet Steel Hot-rolled in Ferrite Region. / Matsuoka, Saiji; Morita, Masahiko; Furukimi, Osamu; Obara, Takashi.

In: isij international, Vol. 38, No. 6, 01.01.1998, p. 633-639.

Research output: Contribution to journalArticle

Matsuoka, Saiji ; Morita, Masahiko ; Furukimi, Osamu ; Obara, Takashi. / Effect of Lubrication Condition on Recrystallization Texture of Ultra-low C Sheet Steel Hot-rolled in Ferrite Region. In: isij international. 1998 ; Vol. 38, No. 6. pp. 633-639.
@article{035ff65d8a4f45cca7137498b3b63a92,
title = "Effect of Lubrication Condition on Recrystallization Texture of Ultra-low C Sheet Steel Hot-rolled in Ferrite Region",
abstract = "The application of the EBSD technique with an SEM provides a new approach to the analysis of variations of the recrystallization texture in the thickness direction of ultra-low carbon sheet steels rolled in the ferrite region. A nonuniform recrystallization texture through the thickness is formed due to the additional shear strain introduced by frictional force between the rolls and the material in sheet steel rolled with a friction coefficient over 0.15, 〈110〉//ND recrystallized grains being formed near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains being formed at the mid plane. On the other hand, 〈110〉//ND recrystallized grains are not formed preferentially near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains are formed uniformly throughout the thickness in sheet steel rolled with a friction coefficient under 0.15. Orientation imaging also reveals differences related to the tolerance of 〈110〉//ND recrystallized grains around the 〈110〉//ND axis in sheet steel rolled without lubrication, in that 〈110〉//ND grains with a small tolerance form at the 1/10 plane from the surface and 〈110〉//ND grains with larger tolerances form at thickness locations from the 1/10 plane toward the surface and center. The r-value depends on the friction coefficient and increases significantly as the friction coefficient decreases under 0.15, resulting in high r-values over 1.2. This change in the r-value with the friction coefficient corresponds to the distribution of the recrystallization texture through the thickness. Orientation imaging allows a more visual and intuitive understanding of the nonuniformity of the recrystallization texture than conventional methods such as optical microscopy and X-ray diffraction measurement.",
author = "Saiji Matsuoka and Masahiko Morita and Osamu Furukimi and Takashi Obara",
year = "1998",
month = "1",
day = "1",
doi = "10.2355/isijinternational.38.633",
language = "English",
volume = "38",
pages = "633--639",
journal = "ISIJ International",
issn = "0915-1559",
publisher = "Iron and Steel Institute of Japan",
number = "6",

}

TY - JOUR

T1 - Effect of Lubrication Condition on Recrystallization Texture of Ultra-low C Sheet Steel Hot-rolled in Ferrite Region

AU - Matsuoka, Saiji

AU - Morita, Masahiko

AU - Furukimi, Osamu

AU - Obara, Takashi

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The application of the EBSD technique with an SEM provides a new approach to the analysis of variations of the recrystallization texture in the thickness direction of ultra-low carbon sheet steels rolled in the ferrite region. A nonuniform recrystallization texture through the thickness is formed due to the additional shear strain introduced by frictional force between the rolls and the material in sheet steel rolled with a friction coefficient over 0.15, 〈110〉//ND recrystallized grains being formed near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains being formed at the mid plane. On the other hand, 〈110〉//ND recrystallized grains are not formed preferentially near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains are formed uniformly throughout the thickness in sheet steel rolled with a friction coefficient under 0.15. Orientation imaging also reveals differences related to the tolerance of 〈110〉//ND recrystallized grains around the 〈110〉//ND axis in sheet steel rolled without lubrication, in that 〈110〉//ND grains with a small tolerance form at the 1/10 plane from the surface and 〈110〉//ND grains with larger tolerances form at thickness locations from the 1/10 plane toward the surface and center. The r-value depends on the friction coefficient and increases significantly as the friction coefficient decreases under 0.15, resulting in high r-values over 1.2. This change in the r-value with the friction coefficient corresponds to the distribution of the recrystallization texture through the thickness. Orientation imaging allows a more visual and intuitive understanding of the nonuniformity of the recrystallization texture than conventional methods such as optical microscopy and X-ray diffraction measurement.

AB - The application of the EBSD technique with an SEM provides a new approach to the analysis of variations of the recrystallization texture in the thickness direction of ultra-low carbon sheet steels rolled in the ferrite region. A nonuniform recrystallization texture through the thickness is formed due to the additional shear strain introduced by frictional force between the rolls and the material in sheet steel rolled with a friction coefficient over 0.15, 〈110〉//ND recrystallized grains being formed near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains being formed at the mid plane. On the other hand, 〈110〉//ND recrystallized grains are not formed preferentially near the surface, and 〈111〉//ND and 〈100〉//ND recrystallized grains are formed uniformly throughout the thickness in sheet steel rolled with a friction coefficient under 0.15. Orientation imaging also reveals differences related to the tolerance of 〈110〉//ND recrystallized grains around the 〈110〉//ND axis in sheet steel rolled without lubrication, in that 〈110〉//ND grains with a small tolerance form at the 1/10 plane from the surface and 〈110〉//ND grains with larger tolerances form at thickness locations from the 1/10 plane toward the surface and center. The r-value depends on the friction coefficient and increases significantly as the friction coefficient decreases under 0.15, resulting in high r-values over 1.2. This change in the r-value with the friction coefficient corresponds to the distribution of the recrystallization texture through the thickness. Orientation imaging allows a more visual and intuitive understanding of the nonuniformity of the recrystallization texture than conventional methods such as optical microscopy and X-ray diffraction measurement.

UR - http://www.scopus.com/inward/record.url?scp=0031674766&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031674766&partnerID=8YFLogxK

U2 - 10.2355/isijinternational.38.633

DO - 10.2355/isijinternational.38.633

M3 - Article

AN - SCOPUS:0031674766

VL - 38

SP - 633

EP - 639

JO - ISIJ International

JF - ISIJ International

SN - 0915-1559

IS - 6

ER -