Abstract
A mechanism of crystal structure refinement in solids subjected to severe plastic deformation is proposed in the framework of a multiscale approach adopted in physical mesomechanics and nonequilibrium thermodynamics. The basis of the mechanism observed in nanostructuring of metallic materials is fragmentation of bent band structures comprising subbands of a base material and a defect one. As the crystal subbands are fragmented the subbands of the defect phase occupy the interfaces between the fragments. "Chessboard-like" distribution of normal and tangential tensile and compressive stresses at the interface between the base and defect material plays an important role in this process. A lower limit to initial crystal structure refinement for different severe plastic deformation techniques is examined.
| Original language | English |
|---|---|
| Pages (from-to) | 203-212 |
| Number of pages | 10 |
| Journal | Physical Mesomechanics |
| Volume | 11 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - 1 Jan 2008 |
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Keywords
- bulk nano structuring
- nonequilibrium thermodynamics
- physical mesomechanics
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Surfaces and Interfaces
Cite this
Physical mesomechanics of crystal structure refinement upon severe plastic deformation. / Panin, V. E.; Egorushkin, V. E.
In: Physical Mesomechanics, Vol. 11, No. 5-6, 01.01.2008, p. 203-212.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Physical mesomechanics of crystal structure refinement upon severe plastic deformation
AU - Panin, V. E.
AU - Egorushkin, V. E.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - A mechanism of crystal structure refinement in solids subjected to severe plastic deformation is proposed in the framework of a multiscale approach adopted in physical mesomechanics and nonequilibrium thermodynamics. The basis of the mechanism observed in nanostructuring of metallic materials is fragmentation of bent band structures comprising subbands of a base material and a defect one. As the crystal subbands are fragmented the subbands of the defect phase occupy the interfaces between the fragments. "Chessboard-like" distribution of normal and tangential tensile and compressive stresses at the interface between the base and defect material plays an important role in this process. A lower limit to initial crystal structure refinement for different severe plastic deformation techniques is examined.
AB - A mechanism of crystal structure refinement in solids subjected to severe plastic deformation is proposed in the framework of a multiscale approach adopted in physical mesomechanics and nonequilibrium thermodynamics. The basis of the mechanism observed in nanostructuring of metallic materials is fragmentation of bent band structures comprising subbands of a base material and a defect one. As the crystal subbands are fragmented the subbands of the defect phase occupy the interfaces between the fragments. "Chessboard-like" distribution of normal and tangential tensile and compressive stresses at the interface between the base and defect material plays an important role in this process. A lower limit to initial crystal structure refinement for different severe plastic deformation techniques is examined.
KW - bulk nano structuring
KW - nonequilibrium thermodynamics
KW - physical mesomechanics
UR - http://www.scopus.com/inward/record.url?scp=57449087225&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57449087225&partnerID=8YFLogxK
U2 - 10.1016/j.physme.2008.11.001
DO - 10.1016/j.physme.2008.11.001
M3 - Article
VL - 11
SP - 203
EP - 212
JO - Physical Mesomechanics
JF - Physical Mesomechanics
SN - 1029-9599
IS - 5-6
ER -