Počet záznamů: 1
In situ neutron diffraction during tensile straining of fine grained ferrite-pearlite steel
- 1.0101886 - UJF-V 20043074 RIV GB eng J - Článek v odborném periodiku
Ono, T. - Tomota, Y. - Lukáš, Petr - Lugovyy, Dmytro - Neov, Dimitar - Tsuchida, N. - Nagai, K.
In situ neutron diffraction during tensile straining of fine grained ferrite-pearlite steel.
[Neutronové difrakční studie jemnozrnné fericko-perlitické oceli in situ v průběhu tahové deformace.]
Materials Science and Technology. Roč. 20, č. 1 (2004), s. 121-125. ISSN 0267-0836. E-ISSN 1743-2847
Grant CEP: GA AV ČR IAA1048107; GA ČR GA202/03/0891
Výzkumný záměr: CEZ:AV0Z1048901
Klíčová slova: neutron diffraction in situ * strain distribution * low carbon
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.639, rok: 2004
Situ neutron diffraction during tensile deformation was performed on a steel with ferrite grain size 3.6 mum, which was close to the achievable minimum size for a ferrite-pearlite structure. The lattice plane strain, microstrain related to dislocation density, and the size of coherently diffracting blocks related to dislocation cell size were determined from the profile analysis of (110) diffraction spectra, as a function of the applied stress. The change in lattice plane strain revealed that grain refining strongly influences 'grain to grain yielding' behaviour with respect to Luders deformation. The increase in dislocation density estimated in the uniformly extending regime was similar to that observed in another specimen with ferrite grain size 46.2 mum
Neutronový difrakční experiment byl proveden in situ v průběhu tahové deformace na vzorcích oceli s velikostí feritického zrna asi 3.6 mikrometru. Velikost mřížové deformace, mikrodeformace v důsledku změn dislokační hustoty a střední velikost subzrn v závislosti na stupni deformace byly určeny z analýzy difrakčního profilu 110.
Trvalý link: http://hdl.handle.net/11104/0009271
Počet záznamů: 1