• simulating the corrosion of zirconium alloys in the water coolant of vver reactors

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1091
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a model for predicting the corrosion of cladding zirconium alloys depending on their composition and operating conditions is proposed. laws of thermodynamics and chemical kinetics of the reactions through which the multicomponent zirconium alloy is oxidized in the reactor coolant constitute the physicochemical heart of the model. the developed version of the model is verified against the results obtained from tests of fuel rod claddings made of commercial-grade and experimental zirconium alloys carried out by different researchers under autoclave and reactor conditions. it is shown that the proposed model adequately describes the corrosion of alloys in coolants used at nuclear power stations. it is determined that, owing to boiling of coolant and its acidification in a vver-1200 reactor, zr-1% nb alloys with additions of iron and oxygen must be more resistant to corrosion than the commercial-grade alloy e110.

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