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Statistical behaviour of interfaces subjected to curvature flow and torque effects applied to microstructural evolutions
- Source :
- Acta Materialia, Acta Materialia, Elsevier, 2022, 222, pp.117459. ⟨10.1016/j.actamat.2021.117459⟩, Acta Materialia, 2022, 222, pp.117459. ⟨10.1016/j.actamat.2021.117459⟩
- Publication Year :
- 2021
- Publisher :
- arXiv, 2021.
-
Abstract
- International audience; The movement of grain boundaries in pure metals and alloys with a low concentration of dislocations has been historically proved to follow curvature flow behavior. This mechanism is typically known as grain growth (GG). However, recent 3D in-situ experimental results tend to question this global picture concerning the influence of the curvature on the kinetics of interface migration. This article explains, thanks to 2D anisotropic full-field simulations, how the torque effects can complicate these discussions. It is then illustrated that neglecting torque effects in full-field formulations can have a significant effect on the overall rate of GG, the shape of grains and grain boundaries as well as their local kinetics. The apparent reduced mobility can be much more complex than expected without necessarily questioning the influence of the curvature on the local kinetic equation.
- Subjects :
- FOS: Computer and information sciences
Materials science
Polymers and Plastics
Flow (psychology)
FOS: Physical sciences
curvature flow
02 engineering and technology
anisotropy
Curvature
01 natural sciences
Computational Engineering, Finance, and Science (cs.CE)
0103 physical sciences
Torque
Computer Science - Computational Engineering, Finance, and Science
010306 general physics
Anisotropy
Condensed Matter - Materials Science
torque effects
reduced mobility
020502 materials
Metals and Alloys
Materials Science (cond-mat.mtrl-sci)
Reduced mobility
Mechanics
Electronic, Optical and Magnetic Materials
Grain growth
0205 materials engineering
Kinetic equations
Ceramics and Composites
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Grain boundary
Subjects
Details
- ISSN :
- 13596454
- Database :
- OpenAIRE
- Journal :
- Acta Materialia, Acta Materialia, Elsevier, 2022, 222, pp.117459. ⟨10.1016/j.actamat.2021.117459⟩, Acta Materialia, 2022, 222, pp.117459. ⟨10.1016/j.actamat.2021.117459⟩
- Accession number :
- edsair.doi.dedup.....da62371031d6103811aaba4f2dd96cf9
- Full Text :
- https://doi.org/10.48550/arxiv.2106.05605