A Model of Microstructure Evolution in Metals Exposed to Large Strains
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F18%3A00507015" target="_blank" >RIV/67985556:_____/18:00507015 - isvavai.cz</a>
Result on the web
<a href="http://przyrbwn.icm.edu.pl/APP/ABSTR/134/a134-3-31.html" target="_blank" >http://przyrbwn.icm.edu.pl/APP/ABSTR/134/a134-3-31.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.134.753" target="_blank" >10.12693/APhysPolA.134.753</a>
Alternative languages
Result language
angličtina
Original language name
A Model of Microstructure Evolution in Metals Exposed to Large Strains
Original language description
Crystalline materials at yield behave as anisotropic, highly viscous fluids. A microscopic inspection reveals a structural adjustment of the crystal lattice to the material flow carried by dislocations. The resistance to this flowndetermines the strength of ductile materials. The deformation microstructure evolves within a common framework up to very high strains > 100. To avoid energetically costly multislip, materials are subdivided into regions which deform by fewer slip systems. To maintain compatibility, the regions defined as deformation bands occur in a form of elongated alternately misoriented domains filled with fairly equiaxed dislocation cells. In the proposed continuum mechanics model, the formation of deformation bands of a lamellae type is interpreted as a spontaneous deformation instability caused by an anisotropy of hardening. However, such a model of the bands predicts their extreme orientation and their width tends to zero. This trend is opposed by hardening caused by a bowing stress of dislocations within the cells.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10101 - Pure mathematics
Result continuities
Project
<a href="/en/project/GA17-04301S" target="_blank" >GA17-04301S: Advanced mathematical methods for dissipative evolutionary systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Physica Polonica. A
ISSN
0587-4246
e-ISSN
—
Volume of the periodical
134
Issue of the periodical within the volume
3
Country of publishing house
PL - POLAND
Number of pages
4
Pages from-to
753-756
UT code for WoS article
000453257500032
EID of the result in the Scopus database
2-s2.0-85058957258