Internal oxidation with significant contribution of oxygen diffusion through the oxide phase
Source abstract
Abstract
Abstract Internal oxidation kinetics of alloys is often controlled by the diffusion of oxygen through the metallic matrix. However high rates of internal oxidation of binary Ni–Al and Ni–Zr alloys can only be explained taking oxygen diffusion along the metal/oxide interfaces into account. In this work ternary Ni–Zr–Y alloys are investigated in H 2 /H 2 O atmospheres under isothermal conditions from 800 to 1000 °C. Internal oxidation rates for these ternary alloys are about three orders of magnitude higher than for binary Ni–Zr alloys. These extremely high rates are attributed to fast oxygen diffusion through the oxide phases which are forming during internal oxidation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Catalytic Processes in Materials Science · Nuclear Materials and Properties
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References (21)
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