Development of a hydrothermal deposition process for applying zirconia coatings on BWR materials for IGSCC mitigation
Source abstract
Abstract
Abstract An in situ hydrothermal deposition process is being developed to apply a film of zirconia (ZrO 2 ) onto interior surface of 304 stainless steel and Alloy 600 as a potential method for mitigating intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWRs). The coating process is discussed. The obtained zirconia coatings are adherent. Monoclinic ZrO 2 is the dominant phase when ZrO(ClO 4 ) 2 was the oxidant; tetragonal ZrO 2 became the dominant phase when ZrO(NO 3 ) 2 was the oxidant. A preliminary experiment did not measure significantly lower values of the electrochemical potential (ECP), relative to the uncoated specimen over a wide range of dissolved oxygen in 265 °C water.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Nuclear Materials and Properties · High-Temperature Coating Behaviors
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References (16)
Show source-provided references
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