Plastic deformation treated as material flow through adjustable crystal lattice
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00228183" target="_blank" >RIV/68407700:21110/14:00228183 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Plastic deformation treated as material flow through adjustable crystal lattice
Original language description
We analyze a flow of an single crystal compressed in a channel die. After an initial adjustment to a tool, specimens twisted under high axial compression do not change their shape and they withstand unlimited amount of plastic deformation. An initial unsteady material flow is followed by a steady flow where no further work hardening is observed. Looking at other severe plastic deformation experiments, it seems that crystalline materials at yield behave as a special kind of anisotropic, highly viscous fluids. High viscosity provides a possibility to describe the flow as a quasi-static process, where inertial and other body forces can be neglected. The flow through the lattice space is restricted to preferred crystallographic planes and directions causing anisotropy. In the deformation process the lattice is strained and rotated. The formation of the substructure is interpreted as instabilities of the homogeneous material flow. The proposed model is based on the rate form of the decompos
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP107%2F12%2F0121" target="_blank" >GAP107/12/0121: A mechanism of ultra-fine substructure formation induced by severe plastic deformation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
NANO SPD6 The 6th International Conference on Nanomaterials by Severe Plastic Deformation
ISBN
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ISSN
1757-8981
e-ISSN
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Number of pages
11
Pages from-to
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Publisher name
IOP Institute of Physics
Place of publication
Bristol BS1 6BE
Event location
Metz
Event date
Jun 30, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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