... of the corrosion products was identified and their kinetics of formation were followed through several exposure times up to 3000 h. Particular attention was given to the carbon and boron concentration profiles through the steel surface as carburization and/or boriding were suspected to be responsible...

...°C. Samples were cross-sectioned for analysis by optical microscopy and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS).The coating thickness for each layer was measured and concentration profiles were determined. The Boltzmann-Matano method was applied to each...

... production chemistry corrosion management concentration hydraulic fracturing strength concentration profile magnification image alloy manuscript texas 77084 procedure fracture surface oilfield chemistry h2s management hisc testing publication division permission reduction hydrogen...

... on the UNS S67956 oxidation behavior. cyclic oxidation concentration profile specimen thickness oxidation Thickness co 2 specimen Od Fecral Alloy Al content oxidation behavior alloy high temperature thick specimen FeCrAl alloy air 10 breakaway oxidation spallation water vapor...

... ppb oxygen SCW. The corresponding concentration profile versus oxide depth is shown in Figure 2(b). The oxidized sample shows a typical duplex oxide structure, in which the scale consists of an outer iron oxide about 7.5 µm thickness and an inner dense iron/chromium-mixed oxide layer with about 6.3 µm...

... ABSTRACT This paper presents the first step of a mathematical model of the propagation period of crevice corrosion using a commercial finite element program. Potential and concentration profiles inside the crevice are in good agreement with previous studies. A detailed inspection...

... integrity embankment corrosion rate splash zone fissure deterioration compressive strength lower part concentration profile delamination waterside pile electrochemical measurement CORROSION OF A DOCK EXPOSED TO THE SPLASH ZONE IN LAKE MARACAIBO Miguel Sánchez, Orlando Pérez, Alvaro Rincón...

... and very effectively blocked Hf, however the coating appeared to limit the aluminum available for scale for Corrosion Inhibition Artificial Intelligence H2S management concentration profile materials and corrosion composition Pipeline Corrosion Production Chemistry thermal cycling re-rich...

... to support the continued growth of the scale. The subsequent depletion of Cr in the alloy can be measured with various types of analytical equipment (e.g. an electron microprobe) and plotted as a function of distance from the alloy/scale interface; thereby producing a concentration profile. In this work...

... reaction equation partial pressure cathodic reaction corrosion diagram equilibrium mass transfer carbonic acid kinetic energy conservation equation well integrity concentration profile chemical reaction reduction surface concentration turbulent pipe flow MODELLING OF AQUEOUS CO2 CORROSION...

... flowline corrosion Modeling & Simulation Upstream Oil & Gas Pipeline Corrosion Subsurface Corrosion well depth downhole system concentration profile Artificial Intelligence well integrity Thickness corrosion rate prediction flow regime laminar layer mass transfer boundary...

... subsequent radiation-induced Cr depletion and impact IASCC susceptibility.s-1s This delay in depletion is not predicted f concentration Cr concentration vacancy metals & mining concentration profile segregation stainless steel international symposium depletion grain boundary Cr...

... involved (H + , H 2 CO 3 , C0 2 , HCO 3 , C0 3 2- ,0H and Fe 2+ ) is independent of the others. The bulk water phase is always saturated with a gas mixture containing C0 2 . The solution is dilute. This model estimates corrosion rates, and concentration profiles in the diffusion layer during...

... stainless steel with added Si in the range from 0.06% to 3.76%. The chemical compositions are shown in Table 1. High resolution analytical electron microscopy (HRAEM) with lnm-resolution was applied on Alloys Si, S4 and S9 for measurement of concentration profiles of elements such as Si, Cr, Ni and Fe...

... concentration profile vacancy solid line anodically interface Corrosion Inhibition Upstream Oil & Gas intu cu current density cu ag thin-film couple oilfield chemistry New York dissolution Corrosion Management mechanism implication ae concentration profile diffusiun Paper No. 188...

... 850°C to 950°C for exposures ranging from 600 to 5000 hours. After the exposure, the alloy surfaces showed compact oxide layers, which resulted in a depleted zone of oxidizing element; in the substrate layer. Using Electron Probe Microanalysis (EPMA), concentration profiles and thy extension...