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Information × Registration Number 0214U003600, 0113U004219 , R & D reports Title Improving resource of products from zirconium alloys using gradient solid soluble strengthening subsurface layers of metal popup.stage_title Head Lukyanenko Alexander, Кандидат технічних наук Registration Date 12-02-2014 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The kinetics of oxidation zirconium alloy Zr-1%Nb and Zr depending on such technological factors as heating rate, holding time and the oxygen pressure in the gas was studied. It is shown that increasing of the heating rate for Zr from 2.5 to 7.5°C/min and for Zr-1% Nb alloy from 5 to 20°C/min helps to reduce the size of the oxide film ZrO2. Was established that increasing of temperature from 750°C to 800°C for 5 h exposure leads to changes of the oxidation law from the parabolic to the quasi-linear. Was defined the surface micro-hardness and its distribution over the cross section of the metal. By metallographic analysis was studied the surface and cross-section samples of Zr-1%Nb zirconium alloy and Zr after diffusion saturation by interstitial element. The empirical dependence of the oxidation kinetics of the alloy Zr and Zr-1%Nb, depending on the rate of heating to 1000°C was proposed.5481 Product Description popup.authors Кравчишин Тарас Миронович Труш Василь Степанович popup.nrat_date 2020-04-02 Close