Article
Materials Science, Multidisciplinary
A. Madhan Kumar, Ihsan-ul-Haq Toor
Summary: The effect of Sn addition on the microstructure, passive characteristics, and localized corrosion behavior of Fe-Cr SS alloys in chloride medium was investigated. The results showed that the addition of Sn improved the resistance against pitting corrosion due to the formation of a compact and stable passive film.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Coatings & Films
R. del Olmo, U. Tiringer, I Milosev, P. Visser, R. Arrabal, E. Matykina, J. M. C. Mol
Summary: The study evaluated the synergistic effect of anodic film and hybrid sol-gel coating with corrosion inhibitors on enhancing barrier and active corrosion protection of aluminium alloy 2024-T3. The addition of Li- and Ce-based salts into the hybrid sol-gel formulation has shown to provide active corrosion protection. Ce-doped sol-gel coating exhibited less visual corrosion and higher active corrosion protection compared to the Li-containing one during the long-term immersion test in a 0.5 mol.L-1 NaCl solution.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Sajjad Akbarzadeh, Leonardo Bertolucci Coelho, Lisa Dangreau, Alex Lanzutti, Lorenzo Fedrizzi, Marie-Georges Olivier
Summary: The inherent porous structure of PEO coatings was utilized to create self-healing properties on AA2024 by using corrosion inhibitors stored in the coating's pores and defects. Smart coating systems were developed by employing 8-hydroxyquinoline and benzotriazole as corrosion inhibitive layers on the PEO layer, followed by sol-gel sealing.
Article
Electrochemistry
Sajjad Akbarzadeh, Yoann Paint, Marie-Georges Olivier
Summary: Due to the porous nature of the coatings produced through the plasma electrolytic oxidation (PEO) process, sol-gel coatings have been widely studied as a post-treatment to enhance the protective characteristics. This study investigated the sealing ability and corrosion resistance properties of four types of PEO/sol-gel coating systems on AA2024 alloy using different sol-gel precursors. The performances of the coatings were evaluated through electrochemical impedance spectroscopy (EIS) and Scanning Vibrating Electrode Technique (SVET) analysis. The results showed that the sealing ability and corrosion resistance of the duplex PEO/sol-gel coating were greatly influenced by the sol-gel precursors and their network properties.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Takumi Kosaba, Izumi Muto, Yu Sugawara
Summary: This study investigated the effect of anodizing on the galvanic corrosion resistance of AA5083 coupled to different materials. The results showed that anodizing effectively suppressed galvanic corrosion and the thickness of the oxide film played a key role in preventing corrosion.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Mariko Kadowaki, Izumi Muto, Yu Sugawara, Nobuyoshi Hara
Summary: The research shows that the retained austenite in Fe-0.39C-1.51Si-2.01Mn steel has high dissolution resistance in NaCl-containing boric-borate buffers, acting as a barrier against pit propagation during pitting corrosion.
Article
Electrochemistry
Tobias Eduardo Schmitzhaus, Maria Rita Ortega Vega, Roberto Schroeder, Iduvirges Lourdes Muller, Silvana Mattedi, Maryna Taryba, Joao Carlos Salvador Fernandes, Celia de Fraga Malfatti
Summary: The anticorrosive performance and inhibition mechanism of [m-2HEA][Ol] in electrolytes with different concentrations of NaCl were studied using various techniques. The compound was found to act immediately after immersion by competing with chloride ions for adsorption on the steel surface, inhibiting the formation of metastable pits.
ELECTROCHIMICA ACTA
(2022)
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
Sang-Jin Ko, Yun-Ho Lee, Ki-Seok Nam, Eun-Ha Park, Jung-Gu Kim
Summary: The effects of different surface conditions, namely carbonaceous residue, copper chloride, and deposit, were quantitatively evaluated for their impact on localized corrosion. Electrochemical analysis and corrosion simulation showed that all three surface conditions induced localized corrosion on copper, with the pitting factor increasing in the order of deposits, copper chloride, and carbonaceous residue. Corrosion simulation further revealed that the galvanic corrosion current density increased as the surface coverage and density of chloride residue decreased.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Leticia Cabrera-Correa, Leandro Gonzalez-Rovira, Adrian Ojeda-Lopez, Juan de Dios Lopez-Castro, F. Javier Botana
Summary: The effect of thermal ageing at 150 oC on the corrosion behaviour of Scalmalloy (R) alloy additively manufactured by laser powder bed fusion is investigated. The results show that cyclic polarisation curves, electrochemical impedance measurements, and mechanical tests exhibit similar results before and after the thermal treatment. However, electron microscopy characterisation reveals that the application of this temperature for sufficient time causes sensitization of the alloy to intergranular corrosion processes.
Article
Materials Science, Multidisciplinary
Reza Parvizi, Anthony E. Hughes, Maria Forsyth, Mike Y. Tan
Summary: This work investigates the multi-scale and open-circuit localised electrochemical processes of AA2024-T3 in the presence and absence of an environmentally friendly rare-earth inhibitor, cerium diphenyl phosphate (Ce(dpp)3). The results show that dosing the inhibitor can effectively suppress the galvanic activities of AA2024-T3 at both macro-scale and micro-scale, indicating its potential as a screening tool for inhibitors and measuring inhibition efficiency.
Article
Materials Science, Multidisciplinary
S. Kumaraguru, RM. Gnanamuthu
Summary: Ternary Ni-Co-Mn oxide (NCM) was used for corrosion prevention application in this study for the first time, showing promising corrosion resistance behavior in Ni/NCM composite coatings. The composite coatings with minor quantities of NCM particles demonstrated superior corrosion resistance.
Article
Materials Science, Multidisciplinary
Daichi Nakato, Masahiko Hatakeyama, Norio Nunomura, Satoshi Sunada
Summary: The corrosion behaviors of Co-Cr-Mo alloys with fcc and hcp structures were studied in a 2.5 M H2SO4 + 0.2 M NaCl solution using polarization tests and weight-loss method. The results showed that the fcc Co-Cr-Mo alloy exhibited better corrosion resistance compared to the hcp Co-Cr-Mo alloy. Additionally, a mixed-phase Co-Cr-Mo alloy with a dominant fcc phase and a small amount of hcp phase displayed similar corrosion resistance to the single-phase fcc alloy.
Article
Materials Science, Multidisciplinary
Marcel Mandel, Volodymyr Kietov, Robert Hornig, Malte Vollmer, Johanna-Maria Frenck, Christina Wuestefeld, David Rafaja, Thomas Niendorf, Lutz Krueger
Summary: The polarization behavior of Fe-34Mn-17Al-5Ni shape-memory alloy and pure Fe in NaCl-free and NaCl-contaminated Ca(OH)(2,sat) solutions were analyzed. It was found that FeMnAlNi exhibits more severe pitting corrosion sensitivity than Fe in NaCl-contaminated solutions. The pitting behavior is rationalized based on the different semiconducting properties of the passive oxides, analyzed by the Mott-Schottky technique.
Article
Chemistry, Physical
Diksha Mahadule, Rajesh K. Khatirkar, Saurabh K. Gupta, Aman Gupta, Tushar R. Dandekar
Summary: The study investigated the effect of heat treatment on the microstructure and corrosion behavior of a high Mo containing titanium alloy. Different microstructures were observed depending on the heating temperature and cooling conditions. Heat-treated samples showed improved corrosion resistance, attributed to the presence of stable TiO2 film on the corroded surfaces. Samples treated at 950 degrees Celsius exhibited the best corrosion resistance overall.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Xuanfei Xu, Tianxue Zhu, Weiwei Zheng, Caiyun Xian, Jianying Huang, Zhong Chen, Weilong Cai, Weiying Zhang, Yuekun Lai
Summary: In this study, a scraping technique was used to coat antifogging films on a substrate by utilizing a solution containing nanoparticles. The resulting hydrophilic coating showed excellent antifogging and self-healing properties, and it could withstand prolonged exposure to heat, ultraviolet radiation, sand impact, and solvent soaking. The simple construction approach could also be applied to various flexible and rigid substrates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shuming Liu, Shuqi Liu, Qian Wang, Zhou Zuo, Lan Wei, Zhong Chen, Xidong Liang
Summary: This article introduces a multifunctional nano-coating based on SiO2/PDMS/EP for improving the surface performance of insulators. The coating exhibits excellent water-repellency, self-cleaning performance, and anti-icing ability, while also allowing for fast surface charge dissipation and increased wet flashover voltage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xuerui Zang, Xuewen Cao, Weiwei Zheng, Tianxue Zhu, Yonggang Lei, Jianying Huang, Zhong Chen, Lin Teng, Jiang Bian, Yuekun Lai
Summary: Inspired by human meniscus, a superhydrophobic inner pipeline coating has been developed to mitigate the erosion and corrosion damages to gas transportation pipeline. The erosion resistance of the coating is significantly improved by optimizing the filler type and buffer layer thickness. The experiment results show that the fiber filler can greatly enhance the erosion resistance of the material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yonggang Lei, Kim Hoong Ng, Yucheng Zhu, Yingzhen Zhang, Zengxing Li, Shen Xu, Jianying Huang, Jun Hu, Zhong Chen, Weilong Cai, Yuekun Lai
Summary: In this study, a new cocatalyst design and synthesis approach was proposed. By activating VC with Mo, the hydrogen generation activity of CdS was significantly improved. The CdS/Mo(0.38)-VC(5 wt%) photocatalyst exhibited excellent photocatalytic hydrogen production rate, hydrogen production quantum efficiency, stability, and recyclability. This work provides an economic alternative for solar-derived hydrogen production by replacing precious metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Biomedical
Lei Yu, Yiping Sun, Yusheng Niu, Pengfei Zhang, Jun Hu, Zhong Chen, Gong Zhang, Yuanhong Xu
Summary: An atomic-dispersion Fe-doped oxygen-deficient molybdenum oxide nanozyme (ADFM) with peroxidase-like and enhanced catalase-like activity is developed for prevention of bacterial infection and promotion of wound healing. ADFM exhibits high aqueous dispersity and pH-adaptive ROS regulation, allowing it to fully exert enzyme-like activity in the wound microenvironment. In vivo experiments show that ADFM achieves efficient healing of drug-resistant bacteria-infected wounds with a wound-healing efficiency of approximately 10 mm(2) per day.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Polymer Science
Wei-Feng Sun, Wen Kwang Chern, John Chok You Chan, Zhong Chen
Summary: In this study, reactive molecular dynamics simulations were used to investigate the decomposition process of crosslinked epoxy resin under high electric field and thermal degradation conditions. The effect of active molecular species, such as nitric acid and ozone, generated by electrical partial discharges on the synergetic thermal-electrical degradation of epoxy resin was analyzed. It was found that these active products oxidize hydroxyl groups and carbon-nitrogen bridge bonds in the epoxy molecular chains, leading to accelerated decomposition and increased decomposition products.
Article
Materials Science, Multidisciplinary
Zhiqiang Li, Vincent Gill, Alexis Lambourne, Zhili Dong, Maxim Avdeev, Joo Tien Oh, Zhong Chen
Summary: The effect of heat treatment on the mechanical properties of FeCo-2V alloy was investigated. The study found that the yield strength decreases with increasing heating temperature and holding time, and decreasing cooling rate. Fast cooling improves the mechanical strength and ductility. The microstructural characteristics of the fracture surface differ between quenched and slow-cooled samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Hongjian Guo, Pengxun Yan, Zhiguo Wu, Bo Li, Fuli Li, Jun Hu, Zhong Chen
Summary: The lubrication mechanisms of Nb-contained oxides were investigated using density functional theory (DFT) computation. It was found that a series of Nb-contained oxides, such as Nb2O5, AgNbO3, and NiNb2O6, were generated during the friction process of NiAl/Nb/Ag coatings as the temperature increased. The friction coefficients decreased from 0.51 to 0.54 at low temperatures to 0.24-0.27 at elevated temperature. The computational results showed that AgNbO3 and NiNb2O6 exhibited better lubrication performances than Nb2O5 due to the lower bonding energy of Ag-O and Ni-O bonds, which were more susceptible to fracture under friction force. This study contributes to understanding the high-temperature lubrication mechanisms of Nb-contained oxides.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Polymer Science
Yan Yang, Jielin Ma, Malvern Yap, Qi Wang, Wen Kwang Chern, Yi Shyh Eddy Foo, Zhong Chen
Summary: In this study, the hygrothermal aging of an epoxy composite insulation material was conducted at different temperatures and relative humidity levels. Electrical properties, including volume resistivity, electrical permittivity, dielectric loss, and breakdown strength, were measured. It was found that the IEC 60216 standard, which uses breakdown strength as a criterion, is inadequate for estimating the lifetime of the material due to the minimal changes in breakdown strength during hygrothermal aging. However, significant increases in dielectric loss correlated well with the mechanical strength-based lifetime prediction, leading to the proposal of a new criterion for determining the end of life of the material.
Article
Chemistry, Physical
Minzhi Ma, Zeai Huang, Lina Li, Wenda Zhang, Rui Guo, Ruiyang Zhang, Wenjun Fa, Chunqiu Han, Yuehan Cao, Shan Yu, Ying Zhou
Summary: By engineering the coordination environment, a Pr single-atom catalyst was developed to enhance the photogenerated electron density for efficient CO2 photoreduction to CH3OH. The optimized Pr-1-N4O2/CN catalyst exhibited significantly higher activity compared to other reference catalysts, with a 28.9 and 1.9-fold increase, promising innovative single-atom catalysts for CO2 photoreduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yuyu Guo, Shuting Li, Dianyu Xu, Jinxi Han, Zhengqiang Xia, Sanping Chen, Jun Hu, Liping Wei, Zhong Chen, Gang Xie, Shengli Gao, Qi Yang
Summary: This study reports a strategy to regulate the surface charge distribution in carbon-based electrocatalyst to enhance its activity and stability in oxygen reduction reaction (ORR). The sample synthesized, Co9S8@CNS-S, exhibited excellent ORR performance. The improved activity was attributed to the exposed positive charge of surface carbon atoms by N, S elements doping synergistic with Co9S8 nanoparticles (NPs), and the enhanced stability was due to the suppression of H2O2 generation by the combination of carbon layer and Co9S8 NPs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Shuai Dong, Jun Hu, Zhao Qin, Hui Li, Suhang Chen, Zhong Chen, Kangzhen Xu
Summary: A novel WO3-based composite (CuX-WO3/Biochar) was designed by doping and loading. Cu as a dopant has the advantages of producing multiple bands and inhibiting grain growth. Biochar, as a carrier, effectively inhibits the agglomeration of nanomaterials. The CuX-WO3/Biochar was applied to catalytic decomposition and laser ignition of energetic materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mario Muralles, Joo Tien Oh, Zhong Chen
Summary: In this study, interatomic potentials for binary systems were developed using the second nearest-neighbor modified embedded-atom method (2NN MEAM) formalism. These potentials accurately reproduce essential physical properties and can be used to study multicomponent alloys and high entropy alloys, deepening our understanding of their unique properties at the atomic scale.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Chemistry, Applied
Xiaofei Cao, Siqian Xing, Duo Ma, Yuan Tan, Yucheng Zhu, Jun Hu, Yao Wang, Xi Chen, Zhong Chen
Summary: Rational design of high-performance electrocatalysts for hydrogen evolution reaction (HER) is crucial for future renewable energy systems. This study developed a multi-level screening methodology to search for stable and active dopants for CoP catalysts. Theoretical and experimental results showed that the difference in work function (Delta phi) and the d-band center (d-BC) of the doped system play important roles in regulating the adsorption free energy (Delta G(H*)) of HER. The discovery of these regulatory parameters can drive the development of high-performance ion-doped electrocatalysts for electrocatalytic water splitting.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Yingzhen Zhang, Denglong Ma, Yonggang Lei, Tianxue Zhu, Jun Hu, Yu Tang, Zhong Chen, Jianying Huang, Yuekun Lai, Zhiqun Lin
Summary: This study reports the substitution of oxygen evolution reaction (OER) with ammonia oxidation reaction (AOR) to enhance hydrogen evolution reaction (HER) efficiency. The experimental results demonstrate the important role of AOR in enhancing interfacial charge transfer and promoting active species generation. Compared to traditional OER-HER water splitting, the AOR-HER system shows a significant increase in hydrogen production.
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
