Factors affecting isothermal oxidation of pure chromium in air
Source abstract
Abstract
Abstract Isothermal oxidation kinetics of pure chromium at 950–1200 °C in purely oxidizing (Ar-20%O2), purely nitriding (N2-5%H2), and oxidizing-nitriding (synthetic air, N2-20%O2) atmospheres were studied. Effects of factors such as oxide volatilization, multiple mass-gains, and nitridation on oxidation kinetics of chromium were investigated using thermal analysis, acoustic emission analysis, and electron microscopy. Results obtained in single oxidant atmospheres compared to those obtained in air clearly showed the transparency of chromia against nitrogen in air. The abrupt mass gain steps observed during isothermal oxidation were appeared due to the local oxide scale failure resulting from growth stresses in the thermally grown chromia scale.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced materials and composites · Nuclear Materials and Properties
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