Year 2019

• Influence of High Temperature Oxidation on Hydrogen Absorption and Degradation of Zircaloy-2 and Zr 700 Alloys

  Publication

  • A. Zieliński
  • A. Cymann-Sachajdak (formerly: A. Cymann)
  • A. Gumiński
  • A. Hernik
  • G. Gajowiec

  - HIGH TEMPERATURE MATERIALS AND PROCESSES - Year 2019

  The present research was aimed at determining the effects of the oxide layers on hydrogen absorption, microstructure and mechanical properties of the Zircaloy- 2 and Zr 702 alloys. The oxidation was made at 350 °C, 700 °C and 900 °C for 10 to 30 min in laboratory air, followed by hydrogen cathodic charging for 72 h and annealing at 400 °C for 4 h. The slow strain rate tests were carried out on oxidized, charged and annealed specimens. The...

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Year 2016

• EFFECT OF SURFACE STATE AND STRESS ON AN OXIDATION OF THE ZIRCALOY-2 ALLOY

  Publication

  • A. Hernik
  • G. Gajowiec
  • W. Serbiński
  • A. Zieliński

  - International Journal of Managent Information Technology Engineering - Year 2016

  Zr alloys are widely used as materials for nuclear fuel pellets in the nuclear industry. In the case of the LOCA or RIA happen, a temperature may locally reach high values. Even if the high temperature maintains shortly, the zirconium oxides may become permeable, absorb hydrogen appearing in cooling water from decomposition reaction and crack because of formation and brittle failure of hydrides. Such model cannot so far take into...

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