Article
Materials Science, Multidisciplinary
Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan, Nadiah Ghazali
Summary: This study investigates the use of environmentally friendly substitute coating additive, particulate and tubular polyaniline (PANI) in the polyvinyl butyral (PVB) coating, as a replacement for toxic chromates. The PANIs were analyzed using TEM, FT-IR, and BET surface area analysis. Electrochemical impedance spectroscopy (EIS) and Tafel polarization analyses were performed to evaluate the coating performance, and it was found that the higher surface area of tubular PANI effectively inhibits mild steel corrosion, with the lowest corrosion rate of (5.730 +/- 0.819) x 10-4 mm/year compared to particulate PANI in the PVB coating.
Article
Environmental Sciences
Yanglin Hu, Chuanmin Chen, Songtao Liu, Yingran Zhou, Wenbo Jia, Yue Cao
Summary: This study evaluated the corrosion behavior of Q235 carbon steel under Bacillus cereus inoculation in simulated cooling water. The results showed that the B. cereus inoculum possessed high anticorrosion efficiencies, forming compact biofilms and causing biomineralization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Pengfei Wu, Baoguo Zhang, Ye Wang, Mengchen Xie, Shitong Liu, Min Liu, Wenhao Xian, Dexing Cui, Kai Zhang
Summary: This paper focuses on the influence of isooctanol polyoxyethylene ether (JFCE) and fatty alcohol polyoxyethylene ether (AEO-9) combined with benzotriazole (BTA) on the chemical mechanical polishing (CMP) of molybdenum (Mo). The experimental results show that the addition of a small amount of JFCE can significantly decrease the removal rate and static etching rate of Mo, as well as improve its surface quality. JFCE plays an inhibition effect on the convex and concave parts of the Mo surface by changing the proportion of Mo oxide and chemically and physically complexing with Mo.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Xianghong Li, Shuduan Deng, Guanben Du
Summary: Coconut diethanolamide (CDEA) is a potential corrosion inhibitor with good hydrolysis resistance. The study demonstrates that CDEA can act as an efficient inhibitor for cold rolled steel in HCl and H2SO4 solutions. The adsorption of CDEA follows the Langmuir isotherm.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Construction & Building Technology
Ahmed O. Alnajjar, Hany M. Abd El-Lateef, Mai M. Khalaf, Ibrahim M. A. Mohamed
Summary: In this study, a Perovskite-type oxide (CoCrO3) was used as the core content to synthesize an oxide/PANI nano composite, successfully creating a composite material with oxide and PANI. The CoCrO3/PANI composite exhibited high protection capacity of around 98.8% in acidic chloride-containing solutions and acted as a mixed-type inhibitor inhibiting both anodic and cathodic reactions.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Zhongyu Huang, Lihong Liu, Bing Lei, Guozhe Meng, Zhiyuan Feng, Honglei Guo, Bokai Liao, Ping Zhang
Summary: A new imidazole derivative corrosion inhibitor was synthesized and its corrosion inhibition performance was evaluated for Q235 carbon steel in a 3.5 wt. % NaCl acidic solution. The results showed that this inhibitor offers excellent corrosion protection performance and provides a new strategy for carbon steel corrosion protection.
Article
Construction & Building Technology
Yu Zhang, Kaifeng Zheng, Jin Zhu, Ming Lei, Xiaoyang Feng
Summary: Weathering steel and high-performance steel are commonly used in bridge engineering, but corrosion effects can reduce their fatigue strength, posing a threat to the safety and reliability of bridges. Experimental results show that corrosion causes a decrease in the fatigue strength of Q345CNH and HPS 70 W, with fatigue cracks primarily originating from pitting flaws.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Samy M. Shaban, M. F. Elbhrawy, A. S. Fouda, S. M. Rashwan, Hoyeda E. Ibrahim, Asma M. Elsharif
Summary: The study found that hydroxy-ethoxy HEDOB surfactant can act as a steel protector against corrosion in 1.0 M HCl, exhibiting corrosion inhibition efficiency at different temperatures; The inhibition effect of HEDOB inhibitor is dependent on concentration and solution temperature, with the highest inhibition efficiency observed at 1000 µM and 55 degrees Celsius.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Multidisciplinary Sciences
N. Sharifi, M. Taghipour, A. Eslami, M. A. Golozar, M. Peikari, M. Ayaz
Summary: In this study, the effect of different concentrations of corrosion inhibitors on the corrosion resistance of carbon steel was investigated, showing that increasing the concentration of hexamine and trisodium phosphate significantly reduces the corrosion rate, while sodium nitrite and sodium benzoate require a critical concentration to protect carbon steel. Pitting corrosion was observed in the presence of different concentrations of corrosion inhibitors except sodium benzoate.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Chemical
Thi-Bich-Ngoc Dao, Xuan Bach Lai, Kim Long Duong Ngo, Tran Dinh Manh, Thi Van Dinh, Xuan Nguyen Thi Thu, Duy Khiem Nguyen, Nam Nguyen Dang
Summary: This study explores the use of Vang tea leaves-water extract as a corrosion inhibitor for carbon steel in acidic solutions. The electrochemical data demonstrates that VTLWE acts as a mixed-type inhibitor, with its effectiveness depending on concentration. The results also indicate that VTLWE is more effective in inhibiting corrosion in 0.5 M H2SO4 solution than in 1.0 M HCl solution. Surface analysis further confirms the formation of an organic film layer on the steel surface.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Physical
Taoyan Mao, Haiming Huang, Dantong Liu, Xiaoqin Shang, Weiliang Wang, Liming Wang
Summary: The corrosion inhibition behaviors of a cationic gemini surfactant with hydrolyzable ester groups in 1.0 M HCl solution was studied, showing high inhibition efficiency and synergistic effect with salt additives. The surfactant acted as a mixed type inhibitor predominantly inhibiting cathodic reactions, forming coordinate bonds with the metal surface. The surface analysis confirmed the high effectiveness of the gemini ester surfactant in protecting carbon steel and the intuitive verification of the synergistic effect on corrosion inhibition with sodium salicylate.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Junying Hu, Qi Xiong, Longjun Chen, Chenfeng Zhang, Ziqi Zheng, Shuai Geng, Zhi Yang, Xiankang Zhong
Summary: The study demonstrates the effectiveness of using BEP to inhibit the corrosion of carbon steel in CO2-O-2-containing solution by forming a barrier layer through chemical bonding with Fe and corrosion products.
Article
Materials Science, Multidisciplinary
L. Pang, Z. B. Wang, M. H. Lu, Y. Lu, X. Liu, Y. G. Zheng
Summary: In this study, the inhibition performance of different benzimidazole compounds on under-deposit corrosion of carbon steel in CO2-saturated solutions beneath CaCO3 and SiO2 deposits was compared. It was found that 2-SH-BI had the highest inhibition efficiency, and the effectiveness of different inhibitors varied under different deposits.
Article
Metallurgy & Metallurgical Engineering
M. Abdallah, R. El-Sayed, A. Meshabi, M. Alfakeer
Summary: The inhibition effect of synthetic nonionic surfactants on the dissolution of carbon steel in sulfuric acid solution has been demonstrated, with the inhibiting power increasing with the amount of surfactants used and influenced by surface properties and temperature. The high inhibition efficiency is attributed to the presence of more electron donor atoms, enhancing the adsorption process.
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
(2021)
Article
Chemistry, Multidisciplinary
Anoja Kawsihan, D. M. S. N. Dissanayake, N. P. W. Rathuwadu, H. C. S. Perera, K. E. D. Y. T. Dayananda, K. R. Koswattage, Rajesh Mahadeva, Arnab Ganguly, G. Das, M. M. M. G. P. G. Mantilaka
Summary: In this study, a polyaniline/mica (Mica-PANI) nanocomposite was synthesized using naturally occurring muscovite mica by a top-down approach as an anticorrosive coating. The coating materials showed high corrosion protection due to the formation of a passivation layer and a barrier layer to prevent corrosive agents from damaging the steel surface.
