Fe-Cr-Ni alloys such as alloys 600 625 690 and 800 are used in steam generator tubing of nuclear power reactors. Precipitation of impurities on the steam generator tubing can lead to fouling and formation of deposits yielding a partially occluded metal surface. In this work the crevice corrosion susceptibility of these alloys is analyzed.
Supercritical water-cooled reactor (SCWR) is an innovative Generation IV nuclear reactor. Nickel-based alloys, such as UNS N06625, UNS R20033 and UNS N07214 alloys, are selected for the fuel cladding. Knowledge gaps exist as regards their use for the fuel cladding in the SCWR. This paper introduces laboratory results on corrosion and stress corrosion cracking (SCC) of the nickel-based alloys.
Exhaustive testing has been conducted and reported previously on UNS N06055 in corrosion 2014 paper number 4223. These data support the use of UNS N06055 for nuclear applications where resistance-to-cracking during fabrication and resistance to primary water stress corrosion cracking (PWSCC) in service are of paramount importance.
Due to the elevated temperatures and chemical composition of hydrothermal fluids, service conditions in geothermal facilities can be extreme in terms of corrosion. This evaluation of corrosion behavior of duplex steel S31803 (318LN, X2CrNiMoN22-5-3, 1.4462) was conducted by electrochemical measurements and exposure tests.
Due to the composition of heat transmission media and temperatures, service conditions in solar facilities are, in many cases, extreme in terms of corrosion. By electrochemical measurements and exposure tests, the suitability of two alloys - X8NiCrSi38-18() and NiCr25FeAlYB - in molten nitrate salt (60 % NaNO3/40 % KNO3) was characterized at 600 °C.
Requirements for corrosion protection for new large offshore wind farms are extended to 25 years’ maintenance-free service lifetime. Therefore, ISO 12944 is being updated. To bring down construction cost for offshore wind, initiatives have been taken to industrialize the coating application process and use standard components.