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періодичних видань НАН України
Modeling of grain subdivision during severe plastic deformation by VPSC method combined with disclination analysis
Репозиторій DSpace/Manakin
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Modeling of grain subdivision during severe plastic deformation by VPSC method combined with disclination analysis
Інший ID:
PACS: 61.63.Bn
Посилання:
Modeling of grain subdivision during severe plastic deformation by VPSC method combined with disclination analysis / A.A. Nazarov, N.A. Enikeev, A.E. Romanov, T.S. Orlova, I.V. Alexandrov, I.J. Beyerlein // Физика и техника высоких давлений. — 2005. — Т. 15, № 1. — С. 31-37. — Бібліогр.: 15 назв. — англ.
Підтримка:
This research is funded by a Los Alamos National Laboratory – Initiatives for Proliferation Prevention Project № T2-0197.
Дата:
2005
Переглядів:
828
Завантажень:
1080
Анотація:
Microstructure development during severe plastic deformation by simple shear is modeled using a combination of the visco-plastic self-consistent (VPSC) method and a disclination model. Strain incompatibilities between a homogeneous effective medium and a grain are calculated by VPSC. These are assumed to result in an accumulation of disclinations in the junctions of a grain that are relaxed by a growth of low-angle dislocation boundaries from the junctions. Predicted misorientation distributions between subgrains and their parent grains agree semi-quantitatively with experimental misorientation distributions for geometrically necessary boundaries. The texture after 100% simple shear was found to be insensitive to the presence of subgrains with misorientations less than 15º.
