Počet záznamů: 1  

In situ stress measurements by neutron diffraction in .alpha/gamma.Fe-Cr-Ni alloys during deformation

  1. 1.
    SYSNO ASEP0185145
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JOstatní články
    NázevIn situ stress measurements by neutron diffraction in .alpha/gamma.Fe-Cr-Ni alloys during deformation
    Tvůrce(i) Harjo, S. (JP)
    Lukáš, Petr (UJF-V) RID, ORCID, SAI
    Tomota, Y. (JP)
    Vrána, Miroslav (UJF-V) RID
    Neov, Dimitar (UJF-V)
    Mikula, Pavol (UJF-V) RID, ORCID, SAI
    Ono, M. (JP)
    Zdroj.dok.Materials Science Forum - ISSN 0255-5476
    347/349, - (2000), s. 328-333
    Poč.str.6 s.
    AkceEuropean Conference on Residual Stresses ECRS-5
    Datum konání28.09.1999-30.09.1999
    Místo konáníDelft-Noordwijkerhout
    ZeměNL - Nizozemsko
    Jazyk dok.eng - angličtina
    Země vyd.RU - Rusko
    Vědní obor RIVBG - Jaderná, atomová a mol. fyzika, urychlovače
    CEPGV202/97/K038 GA ČR - Grantová agentura ČR
    KSK1048601 GA AV ČR - Akademie věd
    KSK1010601 GA AV ČR - Akademie věd
    AnotaceIn situ neutron diffraction experiments during tension-compression deformation were performed for five Fe-Cr-NI alloys with the volume fraction of ferrite varied from 0.0 to 100. Specimens were strained by tensile deformation with a step by step manner up to a few percent plastic strain followed by unloading and then subsequently deformed in compression in the same manner. The lattice plane spacings offerrite (alpha) and austenite (gamma) single-phase alloy before loading were used as reference stress-free spacings to determine lattice strains in the .alpha.-.gamma. dual phase alloys. It has been found that the large residual lattice strains generated by tensile deformation cause a large Bauschinger effect in the .alpha.-.gamma. dual phase alloy. Due to high resolution of the used neutron diffractometer, microstrains in both phases could be extracted from diffractrion profiles. The obtained microstrains do not vary during elastic deformation while a significant increasewith an increase of plastic strain was observed.
    PracovištěÚstav jaderné fyziky
    KontaktMarkéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
    Rok sběru2001

Počet záznamů: 1  

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