...Rihan Rihan; Nourah Alnajdi; Rachid Sablit; Mesferah Alqahtani; Surya Prakash Purpose The purpose of this study is to investigate the susceptibility of L80, and other steels with 1% Cr, 3% Cr and 9% Cr, to stress corrosion cracking ( SCC ), pitting, crevice and stress concentration effect...

... with Cl⁻ for adsorption, thereby reoccupying the site occupied by Cl⁻ and enlarging the pitting pit. Therefore, effective measures such as the prompt removal of broken particles of the anode resin should be implemented to prevent corrosion by impurity ions. Corresponding author...

...QingYuan Zhou; Yangting Sun; Xiangyu Wang; Xin Tan; Yiming Jiang; Jin Li Purpose This study aims to assess the pitting resistance of austenitic stainless steel welded joints fusion zone (FZ) with high density of inclusions before and after surface treatment, including potentiostatic pulse...

... in neutral and high pH environment. Findings Electric-arc-induced ablation occurred preferentially in areas of inclusion. The corrosion resistance of an ablation pit was lower than that of non-ablation areas. In the neutral soil solution, general corrosion was the dominant corrosion that affected...

.... Findings Interestingly, anodized 304SS with thermal oxide produced at 350°C displayed more electrochemical corrosion and pitting resistance than anodized 304 SS only with passive oxide, as related to the formation of oxide film with higher chromium to iron ratio. Whereas, anodized 304SS with thermal oxide...

... surfaces made of 316 L stainless steel in some industrial applications. To address the concern about the pitting performance in the spot areas, the pitting corrosion potential and corrosion resistance were measured in the spot and non-spot areas by means of potentiodynamic polarization and electrochemical...

... is to prepare PANI composite coating consisting of PANI-doped phosphate and Al₂O₃ nanoparticles as filler for protection of stainless steel (SS) substrate in chloride solution. Composites Pitting Coatings Nanocomposites Polyaniline © Emerald Publishing Limited 2020 Emerald...

...Xiangyu Lu; Leyuan Zhang; Xingguo Feng; D. Chen; Yu Zuo Purpose Aluminum tripolyphosphate was used as a corrosion inhibitor in a simulated concrete pore solution. For studies of the inhibition mechanism of aluminum tripolyphosphate on the carbon steel, its influence on the pitting initiation...

...Zhenqi Liu; Jie Wang; Jianhan Chen; Xiya Liu; Yibin Yin; Chaolei Ban Purpose The purpose of this study is to explore the mechanism of branch pits and tunnels formation and increase the specific surface area and capacitance of anode Al foil for high voltage electrolytic capacitor by D.C. etching...

... between the physical parameters before presenting them to the network. Design/methodology/approach The work was conducted in two phases. At the beginning, the authors executed an experimental program to measure pitting corrosion resistance of carbon steel in an aqueous environment. More than 900...

... for NS4 and CW, respectively). Figure 4 Fracture surfaces of SSRT from heat-treated steel exposed to (a) air, (b) NS₄ solution and (c) CW Corrosion Steel Pitting Heat treatment Stress corrosion/environmentally assisted cracking High-strength low-alloy (HSLA) steels...

...Fan Yi; Wang Qingfeng; Yang Wenxiu Purpose The purpose of this study is to study the pitting caused by Ca-Al-O-S composite inclusions of low-alloy steel in 3 Wt.% NaCl solution and 0.01M NaHSO3 solution. Design/methodology/approach The corrosion in 0.01M NaHSO3 was much weaker than in 3 Wt...

...A. Yilmaz Purpose Pitting inhibition efficiency of SO₄⁻ and NO₃⁻ on AISI 316L stainless steel in contact with Cl⁻-containing fiber dyeing solutions together with the influence of the anions on absorption behavior of the solutions were...

...Somrerk Chandra-ambhorn; Wisarut Wachirasiri; Gobboon Lothongkum Purpose This paper aims to construct the E-pH diagrams for AISI 316L stainless steel in chloride solutions containing SO₄²⁻ ions and therefore investigate the role of SO₄²⁻ ions on pitting...

... microscopy. Findings Results indicate that the most serious corrosion occurred in the liquid-air interface zone due to the higher oxygen and water concentration. With the addition of Cu and Cu-Cr, pits were getting smaller and denser, transforming the corrosion type from pitting corrosion to uniform...

...Kin Ho Lo; Chi Tat Kwok; Hong Cheng Kuan; Weng Kin Chan; Wenji Ai Purpose – The purpose of this paper is to characterize the pitting behaviour of sigma-phase-containing duplex stainless steel and investigate the correlation between magnetic susceptibility and pitting potentials. Design...

... Yang can be contacted at: yyhyanr@sina.com © Emerald Group Publishing Limited 2015 Corrosion Pitting Electrochemistry Corrosion engineering Duplex stainless steels (DSSs) are used extensively in different industrial fields, such as paper manufacturing, petrochemical, food...

... because of the excess S and by damaged coating, both of which induced pit nucleation and promoted the pitting corrosion process. The corrosion hole extended from the interior to the exterior, which resulted in the fracturing of the external drill-pipe surface under pressure. Originality/value...

... magnetoelectropolishing MEP130, the pitting corrosion resistance is much better than that after abrasive polishing MP and/or a standard electropolishing EP130. It was proved on a big statistical sample that the pitting corrosion potential Epit after MEP130 is over 1.8 times higher than that after EP130 and over 4.3 times...

...J. González‐Sánchez; L. Dzib‐Pérez; E. Garcia‐Ochoa; G. Canto; M. Sosa‐Baz Purpose The purpose of this paper is to quantitatively assess the pit growth rate on AISI 304L and AISI 316 austenitic stainless steels in natural seawater and 3.5 wt.% NaCl solutions through electrochemical measurements...