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Three-Dimensional Analysis of Ferrite Grains Recrystallized in Low-Carbon Steel during Annealing
- Source :
- Materials; Volume 14; Issue 15; Pages: 4154, Materials, Vol 14, Iss 4154, p 4154 (2021), Materials
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- We performed a three-dimensional (3D) analysis of ferrite grains recrystallized in low-carbon steel during annealing. Cold-rolled specimens were heated to 723 K and held for various periods. The 3D morphology of ferrite grains recrystallized during the annealing process was investigated. The progress of recovery in low-carbon steel was more inhibited than that in pure iron. However, ferrite recrystallization in low-carbon steel was more rapid than that in pure iron. The Avrami exponent was inconsistent with the 3D morphology of the recrystallized ferrite grains in pure iron but consistent with that of the grains in low-carbon steel. Thus, the Avrami exponent depends on the recovery and recrystallization behaviors. Furthermore, the recrystallized ferrite grain growth was virtually 2D. Three types of recrystallized ferrite grains were observed: recrystallized ferrite grains elongated along the transverse or rolling direction; plate-shaped recrystallized ferrite grains grown in the transverse and rolling directions; fine and equiaxed recrystallized ferrite grains. These results suggest that the recrystallized ferrite grains did not grow in the normal direction. Thus, we concluded that the 3D morphology of recrystallized ferrite grains depends on the kinetics of recrystallization and the initial microstructure before recrystallization.
- Subjects :
- Equiaxed crystals
Technology
Materials science
Carbon steel
Annealing (metallurgy)
recrystallization
0211 other engineering and technologies
chemistry.chemical_element
02 engineering and technology
engineering.material
Article
Avrami exponent
recovery
Ferrite (iron)
General Materials Science
021102 mining & metallurgy
three-dimensional analysis
Microscopy
QC120-168.85
carbon
Metallurgy
QH201-278.5
Recrystallization (metallurgy)
021001 nanoscience & nanotechnology
Microstructure
Engineering (General). Civil engineering (General)
TK1-9971
Grain growth
chemistry
Descriptive and experimental mechanics
engineering
Electrical engineering. Electronics. Nuclear engineering
TA1-2040
0210 nano-technology
Carbon
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials; Volume 14; Issue 15; Pages: 4154
- Accession number :
- edsair.doi.dedup.....7a4ff61b461732692e632e23b15ddc40
- Full Text :
- https://doi.org/10.3390/ma14154154