The aqueous corrosion behavior of Zircaloy-2 surfaces contaminated with reaction product from the HNO3-HF-H2O etchant was studied. Surfaces slightly contaminated with residual etchant exhibit cloudy surfaces and corrode more rapidly than noncontaminated surfaces. The surfaces of coupons severely contaminated exhibit white continuously spalling oxide films in high temperature water. In 750 F steam, however, the corrosion is characterized initially by a spalling corrosion film followed by an adherent corrosion product. 6.3.20, 2.3.6

Subject
Acids, Water, Corrosion kinetics, Corrosion rate, Corrosion testing, Oxide films, Corrosion products, Oxide surfaces, Corrosion behavior, High temperature, Corrosion coupons, Steam, Spalling
© 1961 National Association of Corrosion Engineers
1961
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