... using different modeling techniques and testing methods. For example, Sagues et al. published a prediction of existing structures using specialized software to calculate the diffusion coefficient from field cores and the solution to the error function to evaluate marine piles of two structures...

... materials and corrosion well integrity construction materials chloride concentration flowline corrosion Subsurface Corrosion service life reinforcement Publication Division diffusion coefficient probability COV texas 77084 manuscript Pipeline Corrosion riser corrosion...

... remediation solution. flowline corrosion construction materials Pipeline Corrosion Subsurface Corrosion drillstring design riser corrosion Upstream Oil & Gas chloride ingress modeling materials and corrosion well integrity condition rating diffusion coefficient corrosion initiation...

... started, with consequent increase the local value of C T . Thus, there is a coupling between the corrosion initiation and propagation processes. 2-5 Such effect can occur throughout a reinforced structure where the concrete cover thickness X C , diffusion coefficient D, surface chloride content C S...

... loading at higher frequencies. Production Chemistry frequency Corrosion Inhibition Upstream Oil & Gas activation energy specimen diffusion coefficient concentration Publication Division permission Houston metals & mining H2S management sour environment steel FCGR hydrogen...

... concentration profile to determine the diffusion coefficients of aluminum in the coating and substrate phases assuming a semi-infinite substrate. This model can be utilized to predict coating thickness, the aluminum concentration profile and phases in the coating at 850°C as a function of time. Introduction...

... amount of ?’ and ?’’ precipitations and low amount of d phase precipitations. Similar observations were made for the hydrogen diffusion coefficients, determined by means of Devanathan and Stachurski technique. The hydrogen diffusion coefficients of d phase rich variants were about twice as high...

... production chemistry steel substrate permission diffusion coefficient steel concentration electroplated al coating h2s management metals & mining publication division hydrogen embrittlement corrosion inhibition high strength steel corrosion management manuscript coating texas...

..., and the susceptibility to HIC that can be expected from legacy steels which face prospectively more severe sour service. h2s management concentration corrosion management houston diffusion coefficient permeability hydrogen activity permission mild steel thickness legacy steel steel corrosion inhibition...

... Cl - concentration, effective Cl - diffusion coefficient (D), concrete cover, and critical Cl - concentration threshold to initiate corrosion) conform to a distribution rather than being discrete, as is now known to be the case. Upon inputting distribution parameters for the above variables...

... texas 77084 individual layer Pipeline Corrosion Subsurface Corrosion Corrosion Management water content diffusion coefficient absorption South Creek Drive manuscript epoxy steel substrate substrate interaction permission Houston interface KINETIC WATER SORPTION BEHAVIOR OF WATER-BONE...

... foils at 50 °C in three different metallurgical conditions: cold rolled, solutionized, and precipitation hardened. The effective hydrogen diffusion coefficient is considerably higher (5.3-6.8x10 -11 cm 2 /sec) for the solutionized Alloy 718 than for either the cold rolled (3.3-4.2x10 -11 cm 2 /sec...

... ABSTRACT The effect of plastic deformation was investigated on hydrogen permeation of cold rolled or tensile specimen of X65 pipeline steel. The diffusion coefficient of hydrogen was measured using three techniques: Subsequent Transients, Partial Transients and Desorption Technique. Cold work...

... formulations. metals & mining strength renewable energy polymer concrete Publication Division geothermal reservoir concentration coefficient permission West Conshohocken manuscript Upstream Oil & Gas chloride diffusion coefficient texas 77084 diffusion coefficient silica fume...

... of some metallurgical features such as microstructure were evaluated studying hydrogen diffusion on the same materials in as received condition, fully quenched and annealed conditions. Results were compared with steel pipeline not specifically produced for sour service. Lattice diffusion coefficient...

... temperature and 1atm. Hydrogen permeation experiments were peformed primarily to obtain the hydrogen flux associated with the various environments. The diffusion coefficient of hydrogen in the tested steel was also measured. The permeation experiments were performed at various pH s and partial pressures...

... (turbulent diffusion coefficient) adjacent to the wall will be largely overestimated because significant turbulence still exists in the first layer of calculation points, while true turbulent diffusion coefficient ( 'tD ) should be 0. Figure 2: Schematic of concentration profile in mass transfer...

... for the 1-day curing specimens than for the 14-day curing ones, as well as for the ordinary Portland cement specimens compared with the pozzolanic cement specimens. Chloride diffusion coefficients were in the same range as those found in other investigations. INTRODUCTION As the environment in the Gulf...

... definitions of the model parameters. Chloride diffusion coefficients and chloride surface concentrations have been observed to be time-dependent,17 and in their most elaborate versions, empirical models include time as a parameter, and can be used to predict chloride penetration fronts. Mechanistic models...

... construction materials Upstream Oil & Gas flowline corrosion Subsurface Corrosion polymer chloride penetration Pipeline Corrosion riser corrosion chloride diffusion coefficient materials and corrosion well integrity Thickness rebar resistance specimen corrosion potential...