... from Brest (Atlantic Ocean) at room temperature. The scan rate was 0.167 mV/s. calcareous deposition cathodic polarization cathodic protection depolarization Raman spectroscopy seawater stainless steels In natural environments, microorganisms can grow and develop on any natural...

... reaction. ^{10 - 12 ‡} Corresponding author. E-mail: [email protected] . 20 February 2018 23 March 2018 23 March 2018 © 2018, NACE International 2018 carbon dioxide carbon steel cathodic polarization stainless steel The mechanism...

... cathodic polarization monoethylene glycol Tafel slope One method to mitigate CO₂ corrosion of carbon steel is pH stabilization. ¹ Increasing the alkalinity, and hence the pH of the aqueous phase, promotes formation of iron carbonate (siderite) on corroding mild steel...

... the stability region of water and strong hydrogen evolution will take place. Furthermore, the cathodic polarization provokes the formation of deposition products resulting from the strong alkalization, in theory without the parallel effect of Mg corrosion, so that deposition products could be better qualified...

... environments cathodic polarization mechanism mild steel uniform corrosion The mechanisms of cathodic reactions in aqueous corroding systems and the presence of weak acids have been the subject of numerous studies. ^{1 - 8} Carbonic acid, hydrogen sulfide, and organic acids are the most...

... for explicitly determining the anodic Tafel slope experimentally (no anodic polarization sweeps were performed). Furthermore, the cathodic polarization curves recorded do not display a clear linear Tafel region (corresponding to activation control). For these reasons, a true B value could not be determined...

..., University of Alberta, Edmonton, AB, Canada T6G 2V4. ^**Canadian Nuclear Laboratories, Chalk River, Ontario, Canada K0J 1J0. 27 2 2015 11 5 2015 11 5 2015 © 2015 NACE International 2015 boiling water reactor cathode cathodic polarization contact corrosion...

... of China, 238 Songling Road, Qing dao 266100, PR China. ^** China Offshore Oil Engineering Co., Ltd Engineering Company, Tianjin 300451, PR China. ^‡ Corresponding author. E-mail: [email protected] . 21 8 2011 10 12 2011 cathodic polarization corrosion...

... interpretation and fast commercialization of solutions were invaluable. anodic polarization bleach plants cathodic polarization caustic cracking crevice corrosion digesters oxidizing acid chlorides paper machines pitting pulp and paper sector slow strain rate stainless steels thiosulfate pitting...

...K.R. Chasse; P.M. Singh The hydrogen embrittlement (HE) behavior of UNS S31803 (2205) duplex stainless steel (DSS) was evaluated in alkaline sulfide solution (pH 13.3). The cathodic polarization response was evaluated using standard electrochemical techniques. Microhardness was used to measure...

... property. The experimental results confirmed that phosphorus has a deleterious effect on the corrosion resistance of carbon steels in H₂SO₄ solution as a result of the higher hydrogen activity. carbon steel cathodic polarization corrosion rate electrochemical impedance...

... favorable conditions for crack initiation. Local hydrogen ingress appeared to be the main mechanism for microcrack propagation. July 2001 May 2002 NACE International 2002 bicarbonate solution carbon dioxide cathodic polarization crack initiation cyclic loading pipeline steel...

... foil with and without cathodic polarization, a H⁰ permeation conventional Devanathan-type cell, and the bacteria Desulfovibrio desulfuricans subsp. desulfuricans ATCC 7757. The permeation tests were run using a deaerated sterile culture medium inoculated or not with 10% D. desulfuricans...

... Other authors observed a current increase at potentials in the range of –300 mV_SCE through –800 mV_SCE in the curves of cathodic polarization on stainless steel in seawater after the addition of 3.2 mM H₂O₂. ¹² Such H₂O₂ would...

... unreplaced for at least 7 days before the material’s exposure. October 2000 April 2001 1 2010 NACE International 2001 anodic polarization biofouling cathodic polarization ennoblement open-circuit potential oxygen reduction seawater The existence of interactions...

... ) i c + ϕ a FIGURE 1 Plot of steady-state ϕ_c– i_c data for steel specimens cathodically polarized in seawater. ¹² FIGURE 1. Plot of steady-state ϕc– ic data for steel specimens cathodically polarized in seawater.12 Advent of the slope parameter...

... out in the range for the reaction occurring at the surface. The behavior of inhibitors studied deviated from the Langmuir isotherm. The IE of higher hydroxy species was improved when more hydroxy centers were added. Anodic and cathodic polarization curves were shifted toward lower current density...

... capacity. From this, it follows that: (7) R a × w = i m × T × K × S NACE International 1999 cathodic protection cathodic polarization conductors design galvanic anodes offshore structures resistance equations seawater slope parameter Cathodic...

... the above points. cathodic polarization cathodic protection galvanic anodes marine applications offshore platforms and structures retrofit seawater slope parameter General — Cathodic protection (CP), alone or in conjunction with coatings, is recognized generally...

...S.-M. Moon; S.-I. Pyun Faradaic reactions and their effects on dissolution of the natural oxide film on pure aluminum during cathodic polarization were investigated in aqueous 0.5 M sulfuric acid (H₂SO₄) and 0.5 M sodium sulfate (Na₂SO₄) solutions using...