Abstract
In this paper, we carried out investigation of behavior of the material under loading condition identical those used in FSW using molecular dynamic method. The loading was modelled by a rigid rotating "tool" that movies along boundary between two grains. We considered pairing of two crystallites of copper, crystallites of copper and iron, and two crystallites of aluminum 2024. Analysis of the structure of the sample showed the intermixing and stirring of dissimilar atoms as a result the FSW tool pass at the inter-crystallite boundary. It was shown, that under certain condition of loading when tool passes there a region where atoms can occupying the original position of the crystal lattice. We also show influence of an additional oscillating impact applied to the moving tool on the structure of the resulting weld. The simulation results obtained can be used for understanding the processes realized under mechanically activated diffusion.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015 |
| Publisher | International Center for Numerical Methods in Engineering |
| Pages | 982-991 |
| Number of pages | 10 |
| ISBN (Print) | 9788494424465 |
| Publication status | Published - 2015 |
| Event | 13th International Conference on Computational Plasticity, COMPLAS 2015 - Barcelona, Spain Duration: 1 Sep 2015 → 3 Sep 2015 |
Other
| Other | 13th International Conference on Computational Plasticity, COMPLAS 2015 |
|---|---|
| Country | Spain |
| City | Barcelona |
| Period | 1.9.15 → 3.9.15 |
Fingerprint
Keywords
- Deformation
- Mechanical activation
- Microstructure
- Molecular dynamics
ASJC Scopus subject areas
- Computational Theory and Mathematics
- Theoretical Computer Science
Cite this
Features of interface formation in crystallites under mechanically activated diffusion. A molecular dynamics study. / Nikonov, Anton Yu; Dmitriev, Andrey I.; Konovalenko, Ivan S.; Kolubaev, Evgeny Alexangrovich; Astafurov, Sergey V.; Psakhie, Sergey G.
Proceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015. International Center for Numerical Methods in Engineering, 2015. p. 982-991.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Features of interface formation in crystallites under mechanically activated diffusion. A molecular dynamics study
AU - Nikonov, Anton Yu
AU - Dmitriev, Andrey I.
AU - Konovalenko, Ivan S.
AU - Kolubaev, Evgeny Alexangrovich
AU - Astafurov, Sergey V.
AU - Psakhie, Sergey G.
PY - 2015
Y1 - 2015
N2 - In this paper, we carried out investigation of behavior of the material under loading condition identical those used in FSW using molecular dynamic method. The loading was modelled by a rigid rotating "tool" that movies along boundary between two grains. We considered pairing of two crystallites of copper, crystallites of copper and iron, and two crystallites of aluminum 2024. Analysis of the structure of the sample showed the intermixing and stirring of dissimilar atoms as a result the FSW tool pass at the inter-crystallite boundary. It was shown, that under certain condition of loading when tool passes there a region where atoms can occupying the original position of the crystal lattice. We also show influence of an additional oscillating impact applied to the moving tool on the structure of the resulting weld. The simulation results obtained can be used for understanding the processes realized under mechanically activated diffusion.
AB - In this paper, we carried out investigation of behavior of the material under loading condition identical those used in FSW using molecular dynamic method. The loading was modelled by a rigid rotating "tool" that movies along boundary between two grains. We considered pairing of two crystallites of copper, crystallites of copper and iron, and two crystallites of aluminum 2024. Analysis of the structure of the sample showed the intermixing and stirring of dissimilar atoms as a result the FSW tool pass at the inter-crystallite boundary. It was shown, that under certain condition of loading when tool passes there a region where atoms can occupying the original position of the crystal lattice. We also show influence of an additional oscillating impact applied to the moving tool on the structure of the resulting weld. The simulation results obtained can be used for understanding the processes realized under mechanically activated diffusion.
KW - Deformation
KW - Mechanical activation
KW - Microstructure
KW - Molecular dynamics
UR - http://www.scopus.com/inward/record.url?scp=84960863189&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960863189&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9788494424465
SP - 982
EP - 991
BT - Proceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015
PB - International Center for Numerical Methods in Engineering
ER -