Garth Tormoen

Effect of Aging Treatments on the Repassivation Potential of Duplex Stainless Steel S32205

Abstract The effect of isothermal heat treatments at 475, 700, and 870°C on the localized corrosion susceptibility of 2205 duplex stainless steel (UNS S32205) was assessed in chloride-containing en...

Monitoring the Adsorption of Volatile Corrosion Inhibitors in Real Time with Surface-Enhanced Raman Spectroscopy

Abstract The adsorption of volatile corrosion inhibitors (VCIs) was studied in-situ and in real time using surface-enhanced Raman spectroscopy (SERS). Two commercially available VCI emitter product...

A Mobile Sensor System to Detect Water Hold-Up Locations and Internal Corrosion in Pipelines

This paper presents an evaluation of the thin film corrosion sensors that could be used in combination with a mobile, wireless platform to detect internal corrosion along a pipeline. The iron-copper, thin film interdigitated sensor was found to be appropriate for detecting the presence of corrosive conditions within the pipe. The sensor reading using DC resistance measurement method reflected the corrosivity of a number of electrolytes and was able to determine the corrosion rate of iron in these environments. The sensor readings were reproducible. The sensor was able to distinguish between bulk aqueous solution and condensed moisture film. The sensor response was relatively rapid (within 60 s), thus permitting it to be used as a transient, retrievable sensor. The sensor life in the presence of acid gases, CO2 and H2 S, was relatively short (less than a week). The sensor readings were only slightly dependent on sensor geometry.Copyright