Article
Materials Science, Multidisciplinary
S. K. Pradhan, P. Bhuyan, L. R. Bairi, S. Mandal
Summary: The individual implications of sensitization, grain size, residual strain, and grain boundary characteristics on the semiconducting response of passive film in 304 stainless steel were investigated. Higher donor densities in the sensitized specimen deteriorated passive film stability, while a greater density of random grain boundaries promoted defect formation in the film. In contrast, a higher fraction of 'special' boundaries and triple junctions, achieved through grain boundary engineering, suppressed defect formation and enhanced passive film protection.
Article
Chemistry, Physical
Yue Guo, Zhihao Chen, Xiaoshuang Yin, Wenzhong Yang, Yun Chen, Ying Liu
Summary: This study investigated the effect of different passive films on CaCO3 scale deposition on Q235 steel and evaluated their corrosion inhibition and scaling inhibition performance. The results showed that the FePO4 center dot γ-Fe2O3 complex passive film exhibited the best anti-scaling effect.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
E. De Ketelaere, D. Moed, M. Vanoppen, A. R. D. Verliefde, K. Verbeken, T. Depover
Summary: This study investigates the inhibition efficiency and mechanism of the sustainable green corrosion inhibitor sodium silicate (SS) for carbon steel in a dynamic 3 wt% NaCl environment. Electrochemical impedance spectroscopy and potentiodynamic scans were performed under variable conditions using a rotating cylinder electrode setup. Increasing the dosage of SS (<=10mM) under constant laminar flow resulted in higher inhibition efficiency (up to 99.8%), attributed to the replacement of water by silicate species and the formation of a more structured film on the steel surface. Increasing the flow rate led to maximum inhibition efficiency at an intermediate flow rate, due to faster transport of silicate and cathodic species to the steel surface and increased mechanical removal of the film.
Article
Materials Science, Multidisciplinary
Hongwei Zhang, Cheng Man, Chaofang Dong, Liwei Wang, Wen Li, Decheng Kong, Li Wang, Xin Wang
Summary: The critical NaF concentrations for both SLM and wrought Ti6Al4V are similar, and the levels of aluminum and fluoride decrease with higher NaF concentrations and pH values. The SLM sample demonstrates significantly worse corrosion resistance compared to the wrought Ti6Al4V in almost all test solutions.
Article
Materials Science, Multidisciplinary
L. Prince, M-A. Rousseau, X. Noirfalise, L. Dangreau, L. B. Coelho, M. -G. Olivier
Summary: This study investigated the effect of carbonate ions on the corrosion protection of AZ31 magnesium alloy, highlighting the inhibitive effect of CO32- ions and discussing the underlying mechanisms. Multiple techniques including EIS, potentiodynamic polarization measurements, hydrogen evolution tests, SEM-EDX analysis, and XPS were used to analyze the corrosion behavior.
Article
Materials Science, Multidisciplinary
Hulya Keles, Mustafa Keles, Koray Sayin
Summary: DBB compound was synthesized and tested for preventing carbon steel corrosion in HCl at different temperatures. The inhibition efficiency increased with rising temperature and immersion time. Quantum chemical calculation was used to investigate the inhibition properties of DBB through predicting its interaction with metal in water.
Article
Materials Science, Multidisciplinary
Vojtech Hybasek, Jiri Kubasek, Jaroslav Capek, Dino Alferi, Jan Pinc, Jitrenka Jiru, Jaroslav Fojt
Summary: This study compared the degradation reactions of Zn-0.8Mg-0.2Sr in different in vivo environmental models, showing that proteins formed a natural-like barrier in the minimal essential medium, blocking less noble sites. The initial response during exposure differs from longer-term data.
Article
Chemistry, Analytical
Si Chen, Li Sun, Wenkai Cao, Tianyu Zhao, Jie Qiu, Weihua Li
Summary: The pitting behavior of high nitrogen austenitic stainless steel 316LN was studied using the modified potentiostatic pulse test. The optimal test conditions were determined and it was found that pitting mainly initiated at susceptible locations with specific inclusions. After PPT modification, the pitting resistance and protective properties of the oxidation film on 316LN were improved.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Md Mayeedul Islam, Thunyaluk Pojtanabuntoeng, Rolf Gubner, Brian Kinsella
Summary: The study investigates the in-situ monitoring of CO2 corrosion of carbon steel and FeCO3 precipitation under continuous replenishing of condensed water conditions using a newly developed electrochemical probe. The research identifies three stages of corrosion and film formation, and confirms the presence of a protective film with a dual-layer structure.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Mandlenkosi G. R. Mahlobo, Peter A. Olubambi, Phumlani Mjwana, Marc Jeannin, Philippe Refait
Summary: The research found that under correct cathodic protection, the corrosion rate of steel significantly decreased, with the formation of a magnetite layer enhancing the protective effect. However, under overprotection conditions, the efficacy of the protective layer decreased over time, possibly due to the significant water reduction reaction.
Article
Materials Science, Multidisciplinary
Shixiong Wu, Zhiming Gao, Yingjie Liu, Wenbin Hu
Summary: By simulating the electrochemical characteristics of the crack tip and crack wall, it is predicted that the crack tip may still undergo anodic dissolution even under cathodic protection, and the hydrogen atoms generated during cathodic reaction enhance this process. The effect of hydrogen-promoted anodic dissolution and cathodic protection competes at the crack tip, as observed through electrochemical hydrogen permeation and SSRT. The dominant factor in increasing stress corrosion cracking susceptibility of X80 steel is hydrogen embrittlement rather than anodic dissolution.
Article
Chemistry, Physical
Mohamed A. Deyab, Mohsen Mohammed Al-Qhatani
Summary: Research findings show that Oat extract can effectively delay the deposition of alkaline scale on the surface of carbon steel in seawater, with a mechanism of inhibiting scale growth by adsorbing on active growth sites of crystal surfaces. The highest efficiency of 86% is achieved at the highest concentration of Oat extract.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Wentao Qin, Cheng Man, Hongwei Zhang, Zhongyu Cui, Li Wang, Decheng Kong, Chaofang Dong, Hongzhi Cui
Summary: The corrosion resistance of L-PBF Ti6Al4V with heat treatments in F-containing environments was investigated. The corrosion resistance decreased with increasing heating temperature and holding time under 0.20 M NaF condition, while the opposite phenomenon occurred with the concentration increase to 0.50 M. The corrosion product layer in the 0.20 M NaF solution was composed of AlF3 particles and replaced by 4AlOF?TiOF2?H2O in the other condition. The difference in the layer formation process was responsible for the observed contrary phenomenon.
Article
Materials Science, Multidisciplinary
Xiedong Ren, Hu Wang, Qiang Wei, Yuan Lu, Bowen Xiao, Juan Xie
Summary: The study explores the scale formation behavior of N80 steel in CO2 environments at different temperatures and immersion times. It is found that temperature and immersion time significantly influence the electrochemical behavior, as a result of different scales formed on the steel surface. The presence of CaCO3 inhibits corrosion and the formation of FeCO3, with aragonite CaCO3 providing better protection due to its compact structure.
Article
Electrochemistry
S. Marcelin, Z. Zhang, B. Ter-Ovanessian, B. Normand
Summary: The power law model was utilized to analyze the constant-phase-element behavior of passive films, allowing the variation of resistivity with passive film thickness to be obtained. A methodology for analyzing impedance diagrams was described to avoid the need for numerous unknown parameters in the model. The dielectric properties of passive films and the duplex character of these layers were discussed, illustrating the contribution of inner dense oxide and outer hydroxide layers to the resistivity profiles. Additionally, information on the evolution of passive film behavior on 316L stainless steel under irradiation was provided as an example.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Hung M. Ha, Akram Alfantazi
Article
Materials Science, Multidisciplinary
Lokesh Choudhary, Wei Wang, Akram Alfantazi
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
Hung M. Ha, Akram Alfantazi
Article
Metallurgy & Metallurgical Engineering
S. K. Padhy, B. C. Tripathy, A. Alfantazi
CANADIAN METALLURGICAL QUARTERLY
(2016)
Article
Construction & Building Technology
Claudia Soriano, Akram Alfantazi
CONSTRUCTION AND BUILDING MATERIALS
(2016)
Article
Materials Science, Multidisciplinary
Maysam Mohammadi, Ricardo P. Nogueira, Akram Alfantazi
Article
Chemistry, Multidisciplinary
Jing Liu, Zihe Ren, Akram Alfantazi, Edouard Asselin
CRYSTAL GROWTH & DESIGN
(2016)
Article
Electrochemistry
Hung M. Ha, Ibrahim M. Gadala, Akram Alfantazi
ELECTROCHIMICA ACTA
(2016)
Article
Materials Science, Multidisciplinary
Faysal Fayez Eliyan, J. R. Kish, Akram Alfantazi
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2017)
Article
Electrochemistry
Maysam Mohammadi, Lokesh Choudhary, Ibrahim M. Gadala, Akram Alfantazi
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2016)
Article
Materials Science, Multidisciplinary
Maysam Mohammadi, Ricardo P. Nogueira, Akram Alfantazi
Article
Materials Science, Multidisciplinary
Ibrahim M. Gadala, Magd Abdel Wahab, Akram Alfantazi
MATERIALS & DESIGN
(2016)
Article
Engineering, Mechanical
Ibrahim M. Gadala, Magd Abdel Wahab, Akram Alfantazi
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME
(2018)
Article
Materials Science, Multidisciplinary
Faysal Fayez Eliyan, Akram Alfantazi
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2017)
Article
Nanoscience & Nanotechnology
Pooya Hosseini-Benhangi, Chun Haow Kung, Akram Alfantazi, Elod L. Gyenge
ACS APPLIED MATERIALS & INTERFACES
(2017)
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.
