Structural variation along thickness direction of extra-low carbon sheet steels rolled in ferrite region

Saiji Matsuoka, Masahiko Morita, Osamu Furukimi, Takashi Obara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The application of an EBSD technique in an SEM reveals a new approach to analyze a structural variation along the thickness direction of extra-low carbon sheet steels rolled in the ferrite region. The fine recrystallized grains in the sheet steel rolled without lubrication are observed near the surface due to a strong additional shear strain between a material and a roll, and those grains are considered to recrystallize dynamically by means of image-quality imaging with EBSD. The nonuniform recrystallization texture through the thickness are formed in the sheet steel rolled without lubrication by means of orientation imaging with EBSD, <110>//ND recrystallized grains being formed near surface, <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 surface and <111>//ND and <100>//ND recrystallized grains are formed uniformly throughout the thickness in the sheet steel rolled with lubrication. The orientation imaging also reveals the tolerance of <110>//ND recrystallized grains around <110>//ND axis in the sheet steel rolled without lubrication, resulting in the <110>//ND grains with small tolerance being formed at the 1/10 plane from surface and the <110>//ND grains with larger tolerance being formed at the thickness location toward the surface and center from 1/10 plane. The image-quality imaging and orientation imaging allow a more visual and intuitive understanding of the nonuniformity of a microstructure and texture formation in the sheet steel rolled without lubrication than conventional method such as optical microscopy and X-ray diffraction measurements.

Original languageEnglish
Pages (from-to)43-48
Number of pages6
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume83
Issue number2
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Steel sheet
Ferrite
ferrites
Carbon
Lubrication
steels
lubrication
carbon
Imaging techniques
Image quality
Textures
Shear strain
textures
Optical microscopy
Direction compound
shear strain
X ray diffraction
nonuniformity
Microstructure
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Metals and Alloys

Cite this

Structural variation along thickness direction of extra-low carbon sheet steels rolled in ferrite region. / Matsuoka, Saiji; Morita, Masahiko; Furukimi, Osamu; Obara, Takashi.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 83, No. 2, 1997, p. 43-48.

Research output: Contribution to journalArticle

Matsuoka, Saiji ; Morita, Masahiko ; Furukimi, Osamu ; Obara, Takashi. / Structural variation along thickness direction of extra-low carbon sheet steels rolled in ferrite region. In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 1997 ; Vol. 83, No. 2. pp. 43-48.
@article{980da76d4e2144ce9d88c76b5d7f541e,
title = "Structural variation along thickness direction of extra-low carbon sheet steels rolled in ferrite region",
abstract = "The application of an EBSD technique in an SEM reveals a new approach to analyze a structural variation along the thickness direction of extra-low carbon sheet steels rolled in the ferrite region. The fine recrystallized grains in the sheet steel rolled without lubrication are observed near the surface due to a strong additional shear strain between a material and a roll, and those grains are considered to recrystallize dynamically by means of image-quality imaging with EBSD. The nonuniform recrystallization texture through the thickness are formed in the sheet steel rolled without lubrication by means of orientation imaging with EBSD, <110>//ND recrystallized grains being formed near surface, <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 surface and <111>//ND and <100>//ND recrystallized grains are formed uniformly throughout the thickness in the sheet steel rolled with lubrication. The orientation imaging also reveals the tolerance of <110>//ND recrystallized grains around <110>//ND axis in the sheet steel rolled without lubrication, resulting in the <110>//ND grains with small tolerance being formed at the 1/10 plane from surface and the <110>//ND grains with larger tolerance being formed at the thickness location toward the surface and center from 1/10 plane. The image-quality imaging and orientation imaging allow a more visual and intuitive understanding of the nonuniformity of a microstructure and texture formation in the sheet steel rolled without lubrication than conventional method such as optical microscopy and X-ray diffraction measurements.",
author = "Saiji Matsuoka and Masahiko Morita and Osamu Furukimi and Takashi Obara",
year = "1997",
language = "English",
volume = "83",
pages = "43--48",
journal = "Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan",
issn = "0021-1575",
publisher = "一般社団法人 日本鉄鋼協会",
number = "2",

}

TY - JOUR

T1 - Structural variation along thickness direction of extra-low carbon sheet steels rolled in ferrite region

AU - Matsuoka, Saiji

AU - Morita, Masahiko

AU - Furukimi, Osamu

AU - Obara, Takashi

PY - 1997

Y1 - 1997

N2 - The application of an EBSD technique in an SEM reveals a new approach to analyze a structural variation along the thickness direction of extra-low carbon sheet steels rolled in the ferrite region. The fine recrystallized grains in the sheet steel rolled without lubrication are observed near the surface due to a strong additional shear strain between a material and a roll, and those grains are considered to recrystallize dynamically by means of image-quality imaging with EBSD. The nonuniform recrystallization texture through the thickness are formed in the sheet steel rolled without lubrication by means of orientation imaging with EBSD, <110>//ND recrystallized grains being formed near surface, <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 surface and <111>//ND and <100>//ND recrystallized grains are formed uniformly throughout the thickness in the sheet steel rolled with lubrication. The orientation imaging also reveals the tolerance of <110>//ND recrystallized grains around <110>//ND axis in the sheet steel rolled without lubrication, resulting in the <110>//ND grains with small tolerance being formed at the 1/10 plane from surface and the <110>//ND grains with larger tolerance being formed at the thickness location toward the surface and center from 1/10 plane. The image-quality imaging and orientation imaging allow a more visual and intuitive understanding of the nonuniformity of a microstructure and texture formation in the sheet steel rolled without lubrication than conventional method such as optical microscopy and X-ray diffraction measurements.

AB - The application of an EBSD technique in an SEM reveals a new approach to analyze a structural variation along the thickness direction of extra-low carbon sheet steels rolled in the ferrite region. The fine recrystallized grains in the sheet steel rolled without lubrication are observed near the surface due to a strong additional shear strain between a material and a roll, and those grains are considered to recrystallize dynamically by means of image-quality imaging with EBSD. The nonuniform recrystallization texture through the thickness are formed in the sheet steel rolled without lubrication by means of orientation imaging with EBSD, <110>//ND recrystallized grains being formed near surface, <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 surface and <111>//ND and <100>//ND recrystallized grains are formed uniformly throughout the thickness in the sheet steel rolled with lubrication. The orientation imaging also reveals the tolerance of <110>//ND recrystallized grains around <110>//ND axis in the sheet steel rolled without lubrication, resulting in the <110>//ND grains with small tolerance being formed at the 1/10 plane from surface and the <110>//ND grains with larger tolerance being formed at the thickness location toward the surface and center from 1/10 plane. The image-quality imaging and orientation imaging allow a more visual and intuitive understanding of the nonuniformity of a microstructure and texture formation in the sheet steel rolled without lubrication than conventional method such as optical microscopy and X-ray diffraction measurements.

UR - http://www.scopus.com/inward/record.url?scp=0003221371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0003221371&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0003221371

VL - 83

SP - 43

EP - 48

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 - 2

ER -