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On the R-phase transformation related phenomena in NiTi polycrystals subjected to thermomechanical loads

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    0105586 - UJF-V 20043135 RIV FR eng J - Journal Article
    Šittner, Petr - Lugovyy, Dmytro - Neov, Dimitar - Landa, Michal - Lukáš, Petr - Novák, Václav
    On the R-phase transformation related phenomena in NiTi polycrystals subjected to thermomechanical loads.
    [Studie efektů spojených s transformací R fáze v polykrystalech NiTi.]
    Journal de Physique IV. Roč. 4, č. 115 (2004), s. 269-278. ISSN 1155-4339
    R&D Projects: GA AV ČR IAA1048107; GA AV ČR KSK1010104
    Keywords : shape memory alloy * martensitic transformation * neutron diffraction
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 0.294, year: 2004

    Results of in-situ neutron diffraction studies of the 132 R transformation and R-phase reorientation processes in thermal, mechanical and thermomechanical loads on NiTi alloy polycrystals are presented. It is discussed how the crystallographic features and structure instability of R-phase affects the macroscopic thermomechanical sigma - epsilon - T response of NiTi when the R-phase is involved.

    Výsledky in situ neutronových difrakčních experimentů popisují charakter transformace R fáze a její reorientace v průběhu transformace při tepelné, mechanické a kombinované termomechanické zátěži. Je diskutován vliv R fáze na makroskopickou termomechanickou odezvou sigma-epsilon-T NiTi slitiny,zejména z hlediska krystalografie a strukturní nestability R fáze.
    Permanent Link: http://hdl.handle.net/11104/0012823


     
     
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