Mechanisms of dynamic rearrangement of the defect substructure of industrial steels

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The initial stage of dynamic recrystallization initiated in steels by a high-current electron beam has been studied using the TEM method. It has been shown that the degree of dynamic recrystallization is dictated by the value of the stacking fault energy γSF . In steels with relatively low values of γSF (15–20 mJ/m2), centers of dynamic recrystallization develop by the mechanism of pair coalescence of subgrains, no matter what the crystalline lattice type is. The increase in γSF up to 35–40 mJ/m2 causes a changeover in the mechanism of multiple subgrain coalescence. At much higher values of γSF, dynamic recrystallization evolves by migration of local regions of large-angle grain boundaries.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalHigh Temperature Material Processes
Volume17
Issue number4
Publication statusPublished - 1 Sep 2013

Fingerprint

Dynamic recrystallization
Steel
substructures
steels
Defects
defects
Coalescence
coalescing
stacking fault energy
Stacking faults
Crystal lattices
high current
Electron beams
Grain boundaries
grain boundaries
electron beams
Crystalline materials
Transmission electron microscopy
transmission electron microscopy
causes

Keywords

  • Dynamic recrystallization
  • High-current electron beam
  • Steels

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Materials Science(all)
  • Energy Engineering and Power Technology
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Mechanisms of dynamic rearrangement of the defect substructure of industrial steels. / Ivanov, Yu F.

In: High Temperature Material Processes, Vol. 17, No. 4, 01.09.2013, p. 205-211.

Research output: Contribution to journalArticle

@article{28065e2f2c6e40a3833ef4ff00f57929,
title = "Mechanisms of dynamic rearrangement of the defect substructure of industrial steels",
abstract = "The initial stage of dynamic recrystallization initiated in steels by a high-current electron beam has been studied using the TEM method. It has been shown that the degree of dynamic recrystallization is dictated by the value of the stacking fault energy γSF . In steels with relatively low values of γSF (15–20 mJ/m2), centers of dynamic recrystallization develop by the mechanism of pair coalescence of subgrains, no matter what the crystalline lattice type is. The increase in γSF up to 35–40 mJ/m2 causes a changeover in the mechanism of multiple subgrain coalescence. At much higher values of γSF, dynamic recrystallization evolves by migration of local regions of large-angle grain boundaries.",
keywords = "Dynamic recrystallization, High-current electron beam, Steels",
author = "Ivanov, {Yu F.}",
year = "2013",
month = "9",
day = "1",
language = "English",
volume = "17",
pages = "205--211",
journal = "High Temperature Materials and Processes",
issn = "1093-3611",
publisher = "Begell House Inc.",
number = "4",

}

TY - JOUR

T1 - Mechanisms of dynamic rearrangement of the defect substructure of industrial steels

AU - Ivanov, Yu F.

PY - 2013/9/1

Y1 - 2013/9/1

N2 - The initial stage of dynamic recrystallization initiated in steels by a high-current electron beam has been studied using the TEM method. It has been shown that the degree of dynamic recrystallization is dictated by the value of the stacking fault energy γSF . In steels with relatively low values of γSF (15–20 mJ/m2), centers of dynamic recrystallization develop by the mechanism of pair coalescence of subgrains, no matter what the crystalline lattice type is. The increase in γSF up to 35–40 mJ/m2 causes a changeover in the mechanism of multiple subgrain coalescence. At much higher values of γSF, dynamic recrystallization evolves by migration of local regions of large-angle grain boundaries.

AB - The initial stage of dynamic recrystallization initiated in steels by a high-current electron beam has been studied using the TEM method. It has been shown that the degree of dynamic recrystallization is dictated by the value of the stacking fault energy γSF . In steels with relatively low values of γSF (15–20 mJ/m2), centers of dynamic recrystallization develop by the mechanism of pair coalescence of subgrains, no matter what the crystalline lattice type is. The increase in γSF up to 35–40 mJ/m2 causes a changeover in the mechanism of multiple subgrain coalescence. At much higher values of γSF, dynamic recrystallization evolves by migration of local regions of large-angle grain boundaries.

KW - Dynamic recrystallization

KW - High-current electron beam

KW - Steels

UR - http://www.scopus.com/inward/record.url?scp=84943273116&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84943273116&partnerID=8YFLogxK

M3 - Article

VL - 17

SP - 205

EP - 211

JO - High Temperature Materials and Processes

JF - High Temperature Materials and Processes

SN - 1093-3611

IS - 4

ER -