Oxidation-induced creep in Zircaloy-2. I. Basic observations
作者： A.T. Donaldson , H.E. Evaaans
DOI: 10.1016/0022-3115(81)90136-7
关键词: Composite material 、 Ultimate tensile strength 、 Strain rate 、 Reaction rate constant 、 Creep 、 Zirconium alloy 、 Stress (mechanics) 、 Materials science 、 Strain (chemistry) 、 Oxide
摘要: Abstract Sheet specimens of Zircaloy-2 have been oxidised in steam for times between 10 and 370 minutes at the temperatures 1073, 1173 1383 K. The thicknesses oxide alpha-stabilised layers formed during oxidation measured growth rates expressed terms parabolic kinetics. Steam produces tensile extension specimens; a given temperature strain increases parabolically with time. strain-time rate constant temperature, whereas exposure time observed as initial material thickness decreases. data used to compute corresponding stresses alpha transformed beta core material. stress is calculated decrease increasing temperature.
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