Počet záznamů: 1

Constant structure creep experiments on aluminium

  1. 1.
    0369797 - UFM-A 2012 RIV SK eng J - Článek v odborném periodiku
    Milička, Karel
    Constant structure creep experiments on aluminium.
    Kovové materiály. Roč. 49, č. 5 (2011), s. 307-318 ISSN 0023-432X
    Grant CEP: GA AV ČR IAA2041203
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: mechanical properties * high temperature deformation * creep * aluminium
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 0.451, rok: 2011

    Creep behaviour of pure aluminium was investigated using constant structure creep experiments performed in the steady-state creep stage over a wide temperature interval from 523 to 773 K. The simultaneous activity of two parallel operating dislocation mechanisms was deduced from an analysis of the experiments. Both mechanisms are probably governed by diffusion along dislocation cores; however, they differ substantially in their activation areas. The contributions of the mechanisms to the steady-state creep rate depend on the applied stress and temperature. The nature of both mechanisms is extensively discussed.
    Trvalý link: http://hdl.handle.net/11104/0006758