Article
Chemistry, Physical
Raheem A. H. Al-Uqaily, Subhi A. H. Al-Bayaty, Anees A. Khadom, Mustafa M. Kadhim
Summary: The current study examined the inhibition performance of 4-Methoxyphenethylamine (MPTA) in 1 M HCl solution. Experimental investigations and theoretical and mathematical attempts were made to understand the relationship between chemical characteristics and inhibitor efficacy. Results showed that MPTA effectively suppressed the corrosion processes of low-carbon steel in acidic solution by adsorption on the metal surface, following a Langmuir adsorption isotherm. Theoretical analysis revealed that the inhibitory capabilities of MPTA were linked to the charge on the nitrogen atom and the net charges of the atoms in the cyclic ring.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Nabin Karki, Shova Neupane, Dipak Kumar Gupta, Anju Kumari Das, Sanjay Singh, Gayatri Maiya Koju, Yogesh Chaudhary, Amar Prasad Yadav
Summary: This study reports on berberine isolated from Mahonia nepalensis as a highly efficient and thermally stable corrosion inhibitor for mild steel in acid pickling condition. Berberine showed fast adsorption and achieved high inhibition efficiency in a short time, with even higher efficiency at higher concentrations and temperatures. The results support both physical and chemical interactions of berberine with the steel surface, showing endothermic and spontaneous adsorption process.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Sherief A. Al Kiey, E. A. Abd El Meguid, S. S. Abd El Rehim
Summary: The pitting corrosion susceptibility of 904L stainless steel in aerated LiBr solutions was studied using electrochemical measurements. The experimental variables, including electrolyte concentrations, pH, scan rate, temperature, and constant potential, were investigated. The results showed that the uniform corrosion rate and pitting corrosion susceptibility increased with increasing LiBr concentrations and temperature. Increasing the pH of the solution decreased both corrosion rates. An increase in scan rate enhanced uniform corrosion but suppressed pitting corrosion. EIS diagrams displayed a depressed semicircles with the center under the real axis. Bode plots supported the result that the uniform corrosion resistance decreased with increasing Br- anion concentration in LiBr solutions. The observations suggested that the observed single time constant may actually be the overlap of two time constants.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Hany S. Abdo, Asiful H. Seikh
Summary: The study indicates that 304 austenitic stainless steel is more susceptible to corrosion in the presence of H2S and Cl- type ionic species, while CO2 can help decrease the corrosion rate. Raman spectroscopy analysis reveals that the passive layer formed under different conditions consists of FeCO3, FeS2, Fe2O3, Fe(OH)2, etc. SEM images further verify that elemental S- and Cl- can infiltrate the passive film and cause deterioration.
Article
Materials Science, Multidisciplinary
Bianli Quan, Junqi Li, Chaoyi Chen
Summary: This study investigates the synergistic corrosion of Q235 steel in sodium aluminate solution during Bayer alumina production with high-sulfur bauxite. The results show that the corrosion rate decreases sharply at the initial stage and the transformation of unstable iron sulfide to stable iron oxide leads to changes in corrosion products and surface pseudo-passivation.
Article
Materials Science, Multidisciplinary
Izuchukwu K. Nwokolo, Hongwei Shi, Alexander I. Ikeuba, Ningjie Gao, Jiwen Li, Sharjeel Ahmed, Fuchun Liu
Summary: The study successfully synthesized ZnMOF-BTA with excellent corrosion inhibition properties, showing a highly effective corrosion inhibition effect on carbon steel in strong acid environment, providing new insights and directions for the research of novel corrosion inhibitors.
Article
Biotechnology & Applied Microbiology
Shan Wan, Huikai Chen, Tian Zhang, Bokai Liao, Xingpeng Guo
Summary: The parsley extract (PLE) was used as a corrosion inhibitor in combination with iodide, exhibiting an optimal corrosion inhibition efficiency of 99%. The combined inhibitor showed a favorable long-term corrosion inhibition effect, with over 90% inhibition efficiency maintained after 144 hours. The introduction of iodide led to a higher negative charge amount on the carbon steel surface, facilitating the interaction between the corrosion inhibitor and Fe atoms.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Lei Fan, Juantao Zhang, Hao Wang, Yang Liu, Yu Cui, Cheng Wang, Rui Liu, Dongxiao Xu
Summary: The study revealed that Cl- ions can cause pitting corrosion in aluminum alloy 6063, and the combination of Cl- with Cu2+ or Fe3+ ions can exacerbate this corrosion. Fe3+ accelerates uniform corrosion, while Cu2+ mainly promotes pitting corrosion.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Coatings & Films
Ghalia A. Gaber, Lamiaa Z. Mohamed, Antti Jarvenpaa, Atef Hamada
Summary: The electrodeposited Ce-doped TiO2 coatings significantly enhance the corrosion resistance of low-nickel austenitic stainless steel with 8% Mn in acidic chloride solutions. The coatings reduce the corrosion current density and shift the corrosion potential to a more positive value, effectively decreasing the corrosion rate.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Medicine, Research & Experimental
Yan He, Kun Yang, Lu Zhang, Meng Zhan, Xiu-Wen Xia, Huai-Fu Wang, Ya Xie, Ling Huang, Ni Yang, Ya-Li Zheng, Hong Yang, Ying Ning, Jia-Yi Sun, You-Jun Yang, Wei-Jun Ding
Summary: This study investigated the effects of electroacupuncture on hypothalamic microglia in obese mice and found that it led to weight loss, reduced food intake, and adipose tissue weight. Furthermore, electroacupuncture induced a shift in microglia phenotype and decreased neuroinflammation. The findings suggest that electroacupuncture may be a potential therapy against obesity.
Article
Chemistry, Physical
Jin Sung Park, Si On Kim, Young Jae Jeong, Soon Gi Lee, Jong Kyo Choi, Sung Jin Kim
Summary: This study examined the long-term corrosion behavior of 24Mn3Cr steel under acidic aqueous conditions and compared it with conventional ferritic steels. It was found that 24Mn3Cr steel exhibited lower corrosion resistance at the early immersion stages but gradually increased in corrosion resistance with prolonged immersion. In contrast, conventional ferritic steels had lower corrosion resistance due to a less dense and less enriched oxide scale. These findings provide important insight into the industrial applicability of high Mn-low Cr steel in acidic aqueous environments.
Article
Engineering, Multidisciplinary
Rushuai Tian, Minping Jia
Summary: This paper introduces a steel surface defect detector, DCC-CenterNet, utilizing deep learning and keypoint estimation techniques to achieve a balance between speed and accuracy. Experimental results demonstrate that the detector efficiently detects steel surface defects on different datasets.
Article
Chemistry, Multidisciplinary
Nurudeen A. Odewunmi, Mohammad A. Jafar Mazumder, Shaikh A. Ali, Bader G. Alharbi
Summary: A study investigated the synthesis of two new inhibitor molecules through quaternization, and evaluated their corrosion inhibition performance on X-60 mild steel in acidic environments. One of the inhibitors, PDAB, showed excellent corrosion inhibition efficiency at low concentrations, with SEM and EDX analyses revealing the mechanism of protective film formation.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Electrochemistry
Brisa Martinez-Aparicio, David Martinez-Bastidas, Citlalli Gaona-Tiburcio, Ulises Martin, Jose Cabral-Miramontes, Facundo Almeraya-Calderon
Summary: The selection of materials in the aeronautical industry for aircraft manufacturing is crucial due to their presence throughout the aircraft's life cycle. Precipitation hardening stainless steel, such as 15-5 PH and 17-4 PH, is used in components requiring excellent mechanical properties and corrosion resistance in harsh environments. This research aimed to analyze localized corrosion on these stainless steels used in fasteners or engine components.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Peng-Peng Wu, Guang-Ling Song, Yi-Xing Zhu, Lei Yan, Zhen-Liang Feng, Da-Jiang Zheng
Summary: Proper Al alloying can significantly enhance the intelligence of Mg in corrosion detection and protection by reducing self-dissolution, avoiding over-protection, sensitively probing increased corrosivity, and effectively protecting steel activated by chlorides.
Article
Materials Science, Multidisciplinary
Shahin Khoddam
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Xiao-Li Fan, Yuan-Fang Huo, Chang-Yang Li, M. Bobby Kannan, Xiao-Bo Chen, Shao-Kang Guan, Rong-Chang Zeng, Quan-Li Ma
Article
Chemistry, Physical
Oluwole Kazum, Mihail Ionescu, Hossein Beladi, M. Bobby Kannan
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Materials Science, Multidisciplinary
Chang-Yang Li, Xiao-Lei Feng, Xiao-Li Fan, Xiao-Tong Yu, Zheng-Zheng Yin, M. Bobby Konnan, Xiao-Bo Chen, Shao-Kang Guan, Jun Zhang, Rong-Chang Zeng
ADVANCED ENGINEERING MATERIALS
(2019)
Article
Engineering, Biomedical
Zhao-Qi Zhang, Li Wang, Mei-Qi Zeng, Rong-Chang Zeng, M. Bobby Kannan, Cun-Guo Lin, Yu-Feng Zheng
BIOACTIVE MATERIALS
(2020)
Article
Engineering, Chemical
Ali Al-Saadi, Bobby Mathan, Yinghe He
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)
Article
Green & Sustainable Science & Technology
Ali Al-Saadi, Bobby Mathan, Yinghe He
Article
Materials Science, Multidisciplinary
Gui-Jia Gao, Mei-Qi Zeng, En-Liang Zhang, Rong-Chang Zeng, Lan-Yue Cui, Dao-kui Xu, Feng-Qin Wang, M. Bobby Kannan
Summary: The microstructure and chemical compositions of solid solution-treated Mg-3Nd-1Li-0.2Zn alloy were investigated, and corrosion behavior was studied under different conditions. Results showed changes in grain size and volume fraction of the second phase under different treatments, with the formation of Nd-containing oxide film and dense corrosion product layer on the alloy surface.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Review
Thermodynamics
Shahin Khoddam, Soheil Solhjoo, Peter D. Hodgson
Summary: Materials engineering and science heavily rely on indirect measurement of plastic stress and strain through post-processing of mechanical test data, but there is no consensus among researchers on the best test or post-processing theory. Due to oversimplified post-processing of test data, indirect measurements are prone to errors.
ADVANCES IN MECHANICAL ENGINEERING
(2021)
Article
Engineering, Environmental
M. Bobby Kannan, Mohamed Rahuma, Hadis Khakbaz, Robert Melchers
Summary: This study evaluates the corrosion inhibition efficiency of thioridazine hydrochloride (TH), an antipsychotic drug, on mild steel in 1 M hydrochloric acid. The results show that TH significantly enhances the polarization resistance and reduces the corrosion current density of mild steel. Long-term exposure tests demonstrate that TH has a highly effective corrosion inhibition effect on mild steel.
Review
Metallurgy & Metallurgical Engineering
Lei Cai, Di Mei, Zhao-Qi Zhang, Yuan-ding Huang, Lan-Yue Cui, Shao-Kang Guan, Dong-Chu Chen, M. Bobby Kannan, Yu-feng Zheng, Rong-Chang Zeng
Summary: This review discusses the influence of bioorganic molecules on Mg degradation and the formation of protective coatings, as well as proposes research directions for exploring degradation mechanisms and the impact of bioorganic molecules on protective approaches for biomedical Mg alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Review
Metallurgy & Metallurgical Engineering
Ai-Meng Zhang, Praneesh Lenin, Rong-Chang Zeng, M. Bobby Kannan
Summary: Magnesium is a promising candidate metal for biodegradable implants due to its biodegradation tendency and excellent biocompatibility. However, the high degradation rate and localized degradation in physiological conditions are major challenges for its successful implant applications. Recent research has focused on coating hydroxyapatite (HAp), a biocompatible ceramic material, on magnesium-based materials to improve degradation resistance and biocompatibility.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Lei Cai, Xiang Song, Cheng-Bao Liu, Lan-Yue Cui, Shuo-Qi Li, Fen Zhang, M. Bobby Kannan, Dong-Chu Chen, Rong-Chang Zeng
Summary: This work presents the design and preparation of a novel organic-inorganic hybrid coating for corrosion protection of magnesium alloys. By incorporating polyvinyl alcohol (PVA) and neodymium nitrate (Nd(NO3)3) into the micro-arc oxidation (MAO) coating, the properties of the coating are improved and self-healing function is achieved.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Metallurgy & Metallurgical Engineering
Feng Li, Xiang Sun, Liang Song, M. Bobby Kannan, Fen Zhang, Lan-yue Cui, Yu-hong Zou, Shuo-qi Li, Cheng-bao Liu, Rong-chang Zeng
Summary: The influence of intermetallic Al-Mn particles on the corrosion behavior of in-situ formed Mg-Al layered double hydroxide (Mg-Al-CO32--LDH) steam coating on AZ31 Mg alloy was investigated. The results showed that the LDH-coated alloy pretreated with CA possessed the most compact surface and the maximum coating thickness, resulting in a significant decrease in corrosion current density.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Review
Thermodynamics
Shahin Khoddam, Mostafa Mansourinejad, Bahman Mirzakhani, Peter D. Hodgson, Adam S. Taylor
Summary: Foldover is a common yet complex transient boundary condition in metal forming processes. Its role in flow curve identification has been ignored in the current literature. In this study, we propose three methods to identify the onset of foldover and measure its progress by conducting case studies of the barrelling compression test. Experimental and numerical methods are developed, including direct measurement, energy-based measurement, and geometry-based measurement.
ADVANCES IN MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.
