Počet záznamů: 1  

In situ neutron diffraction during tensile deformation of a ferrite-cementite steel

  1. 1.
    0185826 - UJF-V 20033153 RIV GB eng J - Článek v odborném periodiku
    Tomota, Y. - Lukáš, Petr - Neov, Dimitar - Harjo, S. - Abe, YR.
    In situ neutron diffraction during tensile deformation of a ferrite-cementite steel.
    Acta Materialia. Roč. 51, č. 3 (2003), s. 805-817. ISSN 1359-6454. E-ISSN 1873-2453
    Grant CEP: GA ČR GA202/03/0891
    Výzkumný záměr: CEZ:AV0Z1048901
    Klíčová slova: steel * neutron diffraction * stress-strain relationship measurement
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.059, rok: 2003

    A fully pearlitic steel (specimen PI) was subjected to cold-drawing (P2) followed by aging at 423 K (P3) or 673 K (N). Some drawn samples were annealed to make cementite particles spherical (P5). By using neutron diffraction, high compressive residual stress component parallel to the drawing direction was detected in the ferrite matrix of specimen P2, whereas this stress level was partly relaxed in P3 and mostly in P4. In situ neutron diffraction experiments performed during tensile tests have revealed different work hardening behaviors in these specimens. Based on the data provided by a profile analysis of diffraction spectra, i.e. microstrain related to dislocation density and block size, strength and work-hardening of these specimens are discussed. In particular, it is documented that the treatment of the specimen P4 which is equivalent to commercially Zn-plated steel wires produces the largest internal stress by tensile deformation leading to a good balance of strength and uniform elongation. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
    Trvalý link: http://hdl.handle.net/11104/0082188

     
     

Počet záznamů: 1  

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