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Controlled Humidity Protection (CHP) reduces corrosion d/t high relative humidity (exceeding 40%). Addition of the vapor phase corrosion inhibitors to the CHP provide a more effective corrosion protection. A dry air system can will not be able to prevent corrosion.
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The aim of this study was to determine the mechanism of atmospheric corrosion of zinc in areas of local NaCl contamination and to define the driving force of spreading of electrochemical reactions using Scanning Kelvin Probe (SKP).
The main objective with this paper is to present information about the effect of different surface finishes on the corrosion and aesthetic appearance of the duplex grade S32205 exposed at a marine test site in Dubai, UAE. The results obtained include the effect of characteristics such as surface roughness, surface treatment and surface orientation after several years of exposure.
Critical factors affecting intergranular corrosion in AA5XXX under atmospheric exposures. Cathodic kinetics play an important role in atmospheric or open circuit localized corrosion. Electrochemical experiments in thin film electrolytes were conducted to explain the corrosion morphology observed in lab exposures.
Pipeline Enhanced Corrosion Management Analysis (ECMA) was conducted over transmission pipelines that experienced considerable external metal loss after a short time in operation. Pipeline historical and current data, pipe design, construction, soil, corrosion control, monitoring, inspection and operational were reviewed.
A quantitative technique was developed to assess the extent of corrosion damage in two sets of coated lap coupons: one exposed at several outdoor test sites and one that underwent both neutral and acidified salt fog testing. Techniques includeded imaging and analyzing the corroded surfaces with 3D optical profilometry.
An atmospheric cell measures corrosion kinetics. The limiting oxygen reduction current density is increased over immersion results. A segmented, galvanic sensor that enables quantification of spatial distributions of galvanic current is presented.
Assessment of degradation mechanisms based on reviews of literature and operating experience from nuclear and nonnuclear applications, considering the long-term effects of these mechanisms on the integrity of Dry Storage Systems.
This work includes research on the effect environment and corrosion protection systems (chromate coatings) on legacy aluminum alloy UNS A97075 with respect to environmentally assisted fatigue damage.
A sacrificial sensor has been designed to detect the occurrence and rate of atmospheric corrosion and stress corrosion cracking. Constructed using additive manufacturing and can be customized for use with small size wires or ribbons of any metallic material as a sensor electrode.
In this study, a combined experimental and modeling approach was used to characterize the effect of electrolyte layer thickness on electrochemical and localized corrosion distributions in the crevice between SS fastener and Al alloy component.
Offshore wind towers are commonly foreseen with factory-applied anti-corrosion coatings that consist ofmulti-layer 2-component protective paint systems like epoxies or polyurethanes. These coating systems have various requirements in place for application and curing conditions like a high degree of surface cleanliness of steel, roughness profile for achieving proper adhesion, low levels of salt contamination on the surface, and appropriate control of temperature and humidity during curing. During transport and installation of the coated towers, the factory-applied coating often gets damaged.