... chloride and low dissolved oxygen (DO) brines. Tests have been performed for various temperatures and ammonium chloride (NH₄Cl) concentrations. The susceptibility to SCC was assessed in terms of ductility loss, detailed fractography, and cross-sectional inspections to identify the damage...

...Luntao Wang; Huiru Wang; Negar Moradighadi; Antoine Seyeux; Alain Pailleret; Srdjan Nešić; Philippe Marcus Time-of-flight-secondary ion mass spectrometry (ToF-SIMS) 3D mapping and depth profiling were used to study the anodic iron dissolution mechanisms of mild steel in chloride-containing aqueous...

...G. Sundararajan; D. Ballal; A. Anderko; S. Gururaj; T. Bos Experimental foundation has been established for improving corrosion models for stainless steels exposed to neutral aqueous chloride media with low levels of dissolved oxygen (DO). Accurate repassivation potentials were measured for UNS...

... and corrosion rate estimation using internal environmental parameters. Steel specimens within the monitoring set exhibited complete corrosion, while Ag specimens showed discoloration. External rinsing reduced the rate of chloride build-up inside the wing. Additionally, time of wetness (TOW) tended to increase...

...Ankit Kumar Jaiswal; S.S. Gadve Corrosion of reinforcement due to chloride attacks in the marine environment is a natural phenomenon. Corrosion of reinforcement produces corrosion products of high volume, which deteriorates the structural integrity of reinforced concrete structures due to loss...

... data in 72 reinforced concrete specimens, from 12 natural test sites (in nine countries) located in chloride-laden environments (marine airborne-exposure test sites located between 50 m and 250 m from seashore), during a natural exposure period of 10 y. The parameters evaluated included the concrete...

... Compositions of 35TWV1900 Nonoriented Silicon Steel (wt%) chloride corrosion crystallographic orientation nonoriented silicon steel temperature The immersion experiments were performed in water bath heating devices at temperatures of 20°C, 40°C, and 60°C. Before the test, the prepared...

... the two H₂SO₄ concentrations. In 1 wt% H₂SO₄, pitting was the major form of corrosion attack in the presence of chlorides, whereas uniform corrosion dominated in 10 wt% H₂SO₄. The pitting corrosion tendency for the three stainless steel...

...Angeire S. Huggins-Gonzalez; Narasi Sridhar; Ramgopal Thodla; Jeffrey Hawk; David Alman The localized corrosion behavior of Type 304L stainless steel (UNS S30400), Alloy 625 (UNS N06625), and three experimental NiCoCrMo multiprincipal element alloys (MPEA), exposed to methanol/lithium chloride...

...Ahsan Ejaz; Haiying Dong; Xinhe Xu; Tongming Cui; Zhanpeng Lu; Junjie Chen; Jiarong Ma; Tetsuo Shoji The effects of diffusing hydrogen atoms on anodic processes and pitting corrosion for iron in chloride-bearing bicarbonate solutions were studied with a dual cell for realizing the hydrogen...

...Arthur Situm; Xiaoxuan Guo; Burke C. Barlow; Bao Guo; Ian J. Burgess; Andrew P. Grosvenor Polymer coatings can be used to mitigate the corrosion of steel in high-chloride environments. Obtaining speciation information from thin corrosion layers can be important for understanding corrosion...

... enable rapid assessment of localized corrosion performance of microstructures that vary over small length scales due to processing conditions, such as welded metals and additively manufactured alloys, with minimal specimen preparation. chloride critical pitting temperature pitting stainless steel...

... to chlorides. Various stages of the passive to active (P-to-A) transition, which marks the onset of SCC, were investigated using the electrochemical impedance spectroscopy technique. The key mechanisms were identified and confirmed using scanning electron microscopy/energy dispersive x-ray analysis, x-ray...

.... E-mail: [email protected] . 23 November 2020 16 February 2021 16 February 2021 © 2021, NACE International 2021 chloride fluoride Ni-Cr-Mo alloy stainless steel transpassivity FIGURE 2. Comparison of measured E_CORR (a) and R_P (b) values over...

... increased the repassivation potential significantly above a concentration of 0.05 mol/L in a chloride solution containing 0.1 mol/L Cl⁻. The commercial calcium nitrite solution that Berke ⁷ used contained 30.3 wt% of calcium nitrite, Ca(NO₂)₂, and 2.15 wt...

... ^‡ Corresponding author. E-mail: [email protected] . MetCorr, 100 Fillmore Street, Suite 500, Denver 80206, Colorado. 20 August 2020 21 December 2020 21 December 2020 © 2021, NACE International 2021 chloride oxygen pitting pitting factor seawater stainless steels T he...

...F. Montes; A. Frontini; M. Vázquez; M.B. Valcarce Silicate ions were tested as corrosion inhibitors for construction steel using concrete pore simulating solutions contaminated with chloride ions. The results were compared to those from solutions with no silicate and with no silicate...

...Christos Kousis; Neil McMurray; Patrick Keil; Geraint Williams The localized corrosion behavior of E717 magnesium alloy immersed in chloride-containing electrolyte is investigated using an in situ scanning vibrating electrode technique (SVET) coupled with time-lapse imaging. It is shown...

...Hongjuan Li; Fei Ning; Haiying Dong; Kun Zhang; Zhanpeng Lu; Yuanjie Tang; Shuangwei Cai; Tongming Cui; Jiarong Ma; Xinhe Xu; Sichun Ling The effects of magnetic field on anodic dissolution and passivation of iron in a sulfuric acid solution with chlorides are investigated by electrochemical...

... reduction) and—if present—chlorides (due to migration) from the metal surface, as well as the generation and accumulation of OH⁻ at the steel surface. It is well known that concentration changes in reactants (or products) of electrochemical reactions at an electrode surface lead to so-called...