Tag Archives: Corrosion
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Material Property Assessment and Data Gap Analysis for the Prospective Materials for Molten Salt Reactors—Research and Development
This review of the scientific literature characterized the designs of proposed concepts for molten salt nuclear reactors and the material degradation processes associated with each design.
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Evaluation of a Hydrogen Analyzer for Cycle Chemistry Monitoring
Continuous hydrogen monitoring in a power plant’s boiler and turbine steam cycle can help provide insights into corrosion rates. This report presents the findings from hydrogen analyzer trials at a coal-fired unit and a natural gas–fired unit.
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Summary of 2015 and 2016 State-of-the-Fleet Assessments of Cathodic Protection Systems
Nuclear plants use cathodic protection systems to minimize corrosion of buried systems, structures, and components. This research examined the condition of these systems at eight nuclear plants in North America. Researchers used the results to identify best practices, lessons, and gaps in guidance and training.
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Corrosion-Erosion Performance of Recycle Pump Materials Exposed to Flue Gas Desulfurization Slurry in Fossil Power Plants
In recent years, power plants have experienced premature failures and severe degradation of metallic and nonmetallic flue gas desulfurization recycle pump internals, often leading to costly plant outages. This study examines the resistance to degradation of various commercial flue gas desulfurization recycle pump materials, including 10 white cast irons and three nonmetallic coatings.
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Corrosion of Buried Steel Racking Systems at Photovoltaic Power Plants—Phase 1 Technical Update
This research quantified the corrosion of buried structural steel at solar power plants. Researchers analyzed soil samples from an Arizona solar farm and used the results to model the soil corrosivity for steel and zinc.
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Field Guide: Inspection of Steam/Water Cycle Components from a Chemistry Perspective
During power plant outages, personnel can examine major components of the steam/water cycle for chemistry-related or mechanical damage that may affect the chemistry on critical equipment. Using photos and illustrations, this field guide provides instructions on what to look for when performing visual inspections of components that are often only accessible during outages.
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Data Mining of Buried Pipe Inspection Results Data
Since 2011, nuclear power utilities have aggregated more than 4,300 inspection results for buried and underground pipes into an EPRI-managed industry database. Data analysis indicated that buried pipes are in extremely good condition and that internal corrosion is a more significant concern for some systems. This report discusses these and other observations and conclusions.
