Transmission substation structure component design / construction and corrosion risk factors, details on inspection findings / evaluations and mitigating actions, recommended actions for future integrity assessments, and recommended structure design and surveillance practices to optimize lessons learned.
Technical analyses and laboratory testing in advance of a wiped-film evaporator system installation and operation as well as the results of initial cleaning evolutions. The technical evaluations included: 1) finite element (FE) stress analyses, 2) laboratory displacement measurements to confirm FE results, 3) material integrity testing, and 4) laboratory effectiveness testing.
In this research, the focus was corrosion behavior of two stainless steels (UNS S30400 and UNS S31600) and a carbon steel (UNS G10180). These were tested at 700°C in a molten NaCl-KCl-MgCl₂ eutectic salt in static air and flowing argon. Electrochemical techniques were used to characterize the corrosion behavior.m
Aging mechanisms - including general corrosion, pitting/crevice corrosion, galvanic corrosion, microbiologically influenced corrosion, stress corrosion cracking (SCC), creep, fatigue, thermal aging, radiation embrittlement, stress relaxation, and wear - based on literature and operating experience from nuclear and nonnuclear applications.
The Hanford Site in Richland, WA stores liquid radioactive waste in underground, carbon steel tanks. Electrochemical corrosion testing was performed to determine new limits that optimize the chemistry control, yet are robust enough to inhibit against the possibility of increased concentrations of aggressive species.
An alternative method for directly measuring effectiveness of AC-induced corrosion control and mitigation efforts. This method takes the form of traditional coupons imbedded with ultrasound testing (UT) transducers designed to directly measure and track coupon metal loss and related corrosion-induced anomalies.
Calcium bromide is used in the coal fire power plant industry to help control mercury emissions. The objective of this study was to determine the effect of bromide additions in chloride-rich Wet Flue Gas Desulfurization slurries on the crevice corrosion resistance of commercially-available corrosion resistant alloys.
Fireside corrosion is a serious concern for power generation industry since the harsh conditions lead to an accelerated corrosive attack of plant components. This study aims to investigate the fireside corrosion behavior of different metals under char and lignite conditions and with increased amount of chlorine and potassium.
Expansion has increased the risk of AC in pipelines. In this work, calculations of induced AC voltage and current are performed for scenarios involving: HVAC transmission powerline configuration, lateral distance to the transmission pipeline, and parallelism between the transmission lines, soil, and pipeline and coating properties.