Effect of Residual Etchant on the Corrosion Behavior of Zircaloy-2
- 1 December 1961
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 17 (12) , 566t-570t
- https://doi.org/10.5006/0010-9312-17.12.82
Abstract
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 non-contaminated 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, 2.3.6Keywords
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