Article
Metallurgy & Metallurgical Engineering
Tong Bu, Ruijie Jia, Tao Ying, Andrej Atrens, Pengbo Chen, Dajiang Zheng, Fuyong Cao
Summary: A novel coating on the Mg1Mn alloy was produced by anodic polarization combined with hydrothermal treatment (AP + H) in 0.1 M Na2CO3 solution. The coating consisting of MgCO3, Mg(OH)(2), and MgO provided satisfactory protection in 3.5 wt% NaCl, but showed increased corrosion rate after 72 hours. The failure of the coating was attributed to second phase particles or impurities in the matrix. The AP + H coating is considered suitable as a primer coating for Mg applications in kitchen ware, biomedical areas, or industry.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Iryna Kozina, Halina Krawiec, Maria Starowicz, Magdalena Kawalec
Summary: Spin coating technique was used to deposit chitosan coatings on the surface of Mg20Zn magnesium alloy, resulting in increased corrosion resistance by forming CaSiO3 and Ca-3(PO4)(2) compounds on its surface. Corrosion rate was reduced from 3.2 mm/year to 1.2 mm/year for uncoated and coated substrates, respectively.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Chemistry, Physical
Xiaodong Xue, Chunyong Liang, Donghui Wang, Feng Peng
Summary: Magnesium and its alloys have excellent mechanical properties and biodegradability, making them promising candidates in industrial and biomedical fields. However, their rapid corrosion limits their widespread applications. The development of self-healing coatings is essential to repair the damage and enhance their corrosion protection ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Anawati Anawati, Medio Febby Fitriana, Muhammad Dikdik Gumelar
Summary: The bilayer anodic film/beeswax-colophony structure effectively improved the corrosion resistance of magnesium alloy surface, showing a significant decrease in corrosion current density and an increase in film resistance.
Article
Chemistry, Physical
Shuaikang Yang, Chen Wang, Fuzhen Li, Naihao Liu, Putong Shi, Baojin Wang, Ruixue Sun
Summary: Micro-arc oxidation (MAO) is an effective and environmentally friendly method for generating dense and homogeneous coatings with high corrosion resistance on magnesium alloys. However, the porous structure of MAO coatings can lead to reduced corrosion resistance due to the invasion of corrosive media. In this study, a novel one-step in situ growth of a pore-sealing coating on MAO-coated AZ31B alloy was achieved by hydrothermal treatment. The resulting coating effectively seals the micro-pores and micro-cracks of the MAO coating and exhibits improved corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
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, Multidisciplinary
Zhi-Xin Han, Xiang-Mei Liu, Lei Tan, Zhao-Yang Li, Yu-Feng Zheng, Kelvin Wai-Kwok Yeung, Zhen-Duo Cui, Yan-Qin Liang, Sheng-Li Zhu, Shui-Lin Wu
Summary: A protective coating of hybrid polycaprolactone/indocyanine green was constructed on AZ31 Mg alloy to control its degradation rate through NIR light irradiation. The coating effectively protected the Mg alloy from corrosion, but its corrosion resistance was significantly reduced under NIR light irradiation.
Article
Materials Science, Multidisciplinary
Xinran Yao, Yujie Yang, Minxing Zheng, Jinghong Wang, Changyang Liu, Jiapeng Sun, Guosong Wu
Summary: This study proposes a strategy to enhance the corrosion resistance of magnesium alloys by transforming corrosion products into protective coatings. By immersing a magnesium-neodymium alloy in potassium dihydrogen phosphate solution, a uniform MgHPO4·3H2O coating is formed, which significantly improves the corrosion resistance of the alloy.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Jing Yuan, Rui Yuan, Pei Li, Duolu Mao, Tao Feng
Summary: A superhydrophobic ceria-based composite coating was developed to improve the corrosion resistance of AZ61 magnesium alloy. After hydrothermal treatment, the composite coating showed hydrophobic properties and excellent corrosion resistance, effectively preventing electrolyte contact with the substrate.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2021)
Article
Chemistry, Physical
Jithu Jayaraj, A. Srinivasan, C. Arunchandran, V. Rajinikanth
Summary: This study proposes a two-stage chemical conversion coating process for magnesium alloys. The results show that the water-based coating has self-healing characteristics, while the ethanol-based coating has better corrosion resistance. Both coatings exhibit acceptable cell viability under physiological conditions.
APPLIED SURFACE SCIENCE
(2024)
Article
Metallurgy & Metallurgical Engineering
Guowei Wang, Dan Song, Yanxin Qiao, Jiangbo Cheng, Huan Liu, Jinghua Jiang, Aibin Ma, Xiaolong Ma
Summary: A one-step hydrothermal processing using a stearic-acid-based precursor medium was developed to produce super-hydrophobic and corrosion-resistant coatings for magnesium-lithium alloys. The coatings were formed through hydrothermal conversion and the concurrent formation of low surface energy materials. The obtained coating exhibited super-hydrophobicity and excellent corrosion resistance due to the multiscale microstructures and through-thickness stearates.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Coatings & Films
Fangping Mou, Zhongwei Wang, Hao Zeng, Yanlong Ma, Fei Guo, Linjiang Chai, Zuxin She, Lunwu Zhang
Summary: A Li2CO3/Mg(OH)2 composite film was fabricated on LA141 Mg-Li alloy using hydrothermal method to improve its corrosion resistance. The corrosion rate of the alloy was decreased by 98.93% with the protection of the as-prepared film. The film had a bilayer structure, with the inner layer providing the main corrosion protection performance.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Christos Kousis, Patrick Keil, Neil McMurray Hamilton, Geraint Williams
Summary: In-situ scanning Kelvin probe and time-lapse photography were used to investigate filiform corrosion (FFC) of organic coated magnesium alloys. The propagation rates of FFC were found to increase logarithmically with chloride ion concentration and were strongly influenced by relative humidity. Surface analysis after corrosion revealed chloride abundance near the filament leading edge and evidence of sequestration within corroded regions behind. The FFC mechanism involves chloride-induced anodic dissolution at the front coupling with water reduction on a cathodically-activated corroded surface behind.
Article
Chemistry, Physical
Kui Xue, Yan-Jin Li, Tian-Hao Ma, Lan-Yue Cui, Cheng-bao Liu, Yu-hong Zou, Shuo-Qi Li, Fen Zhang, Rong-Chang Zeng
Summary: In this research, a self-assembled amorphous calcium carbonate (ACC)@curcumin (Cur) loaded polymethyltrimethoxysilane (PMTMS) coating on micro-arc oxidation (MAO) coated magnesium (Mg) alloy was proposed to overcome the issues of rapid corrosion and bacterial infection in using biodegradable Mg alloy for biomedical materials. The coating exhibited favorable corrosion resistance, dual antibacterial ability, and good biocompatibility. Cur was employed as an antibacterial agent and photosensitizer for photothermal therapy. The core of ACC significantly improved the loading of Cur and the deposition of hydroxyapatite corrosion products during degradation, thus enhancing the long-term corrosion resistance and antibacterial activity of Mg alloys.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jun Chen, Tingting Jiang, Xiangna Lan, Kai Kang, Fanggong Cai, Sude Ma
Summary: The composite LDHs film provides excellent initial protection to Mg-4Zn alloy, and during long-term immersion, corrosion products are deposited on both the bare alloy and the film, enhancing barrier and self-healing effects. Despite filiform corrosion on the substrate, the coated sample remains intact with only local pit corrosion after 18 days of immersion.
MATERIALS TODAY PHYSICS
(2021)
Article
Spectroscopy
Yeming Xu, Pai Liu, Yunhong Zhang
Summary: Water content in atmospheric aerosols is crucial for understanding atmospheric chemistry and addressing environmental issues. FTIR spectroscopy is commonly used to quantify water content, but distortion in the OH stretching vibration band can affect accuracy. A new model for simulating FTIR absorption of water droplets was developed to address this issue.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Spectroscopy
Yunxia Wang, Lulu Song, Guangguo Wang, Hongyan Liu, Zhuanfang Jing, Yongquan Zhou, Fayan Zhu, Yunhong Zhang
Summary: The research investigated the existence of direct contact ion pairs (CIP) in magnesium nitrate solutions using Raman spectroscopy, molecular dynamics (MD) simulations, and density functional theory (DFT) calculations. The study revealed that solvent-shared ion pairs (SIPs) were dominant in dilute solutions, gradually transforming into CIPs as the concentration increased. As the concentration further increased, the CIP content decreased while the complexity of structures increased.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Environmental Sciences
Yeming Xu, Pai Liu, Shuaishuai Ma, Wenxiu Pei, Shufeng Pang, Yunhong Zhang
Summary: Understanding the efflorescence process of atmospheric aerosols is crucial for describing their phase transition dynamics. In this study, the efflorescence process of ammonium sulfate aerosol droplets mixed with water-soluble organic compounds (WSOCs) was investigated using ATR-FTIR spectroscopy. It was found that the addition of WSOCs lowers the characteristic efflorescence relative humidity, broadens the range, and reduces the crystallization ratio of the aerosol droplets. Sucrose and glycerol were observed to completely suppress crystallization at specific organic to inorganic ratios, suggesting the possibility of aerosols skipping efflorescence and transitioning into a glassy state at low humidity conditions.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Environmental Sciences
Na Wang, Yaxin Guo, Jiarong Li, Shufeng Pang, Yunhong Zhang
Summary: Water-soluble amino acids were found to play an important role in cloud condensation nuclei (CCN) material. The hygroscopic properties and phase states of ammonium nitrate (AN) mixed with glycine and alanine were investigated. The study revealed that amino acids could form mixed particles with AN and remain solid during hydration due to hydrogen bonding interaction.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Engineering, Environmental
Zhe Chen, Pai Liu, Weigang Wang, Xue Cao, Yu-Xin Liu, Yun-Hong Zhang, Maofa Ge
Summary: This study demonstrates that the uncatalyzed autoxidation of SO2 in aerosols, especially under high ionic strength and acidic conditions, can significantly accelerate the sulfate formation rate, which may contribute to the severe winter haze events in Beijing and North China Plain.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Li Zhou, Ting Lei, Dongjuan Kang, Yucong Guo, Yunhong Zhang, Fumo Yang, Maofa Ge, Weigang Wang
Summary: Coal-derived fly ash is a major aerosol composition in the atmosphere. The heterogeneous uptake of hydrogen peroxide and sulfur dioxide on coal fly ash was studied, and the effects of temperature and mixing ratio on the uptake coefficients were analyzed. The presence of gaseous H2O2 appeared to enhance the ability of SO2 uptake on coal fly ash.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Analytical
Baokun Huang, Qiannan Zhao, Chenglin Sun, Lin Zhu, Hong Zhang, Yunhong Zhang, Cunming Liu, Fabing Li
Summary: In this study, a simple and effective method was developed to enhance the signal of spontaneous Raman scattering from gases and liquids. By utilizing the principle of an integrating sphere, multiple pass actions of low-energy pump light and the collection of all Raman scattered light were achieved. The experimental results showed that our setup can significantly improve the detection limit for liquids compared to confocal Raman scattering spectroscopy.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Xinbo Jing, Zhe Chen, Qishen Huang, Pai Liu, Yun-Hong Zhang
Summary: This study reports a technique for high spatiotemporal resolution pH measurement in microdroplets using spontaneous Raman spectroscopy. The results show that chloride depletion in the microdroplets leads to a continuous increase in pH, while a stable pH gradient exists within a single droplet. This technique provides a new method for precise pH measurement in aerosols.
ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Yue Zhu, Shufeng Pang, Yunhong Zhang
Summary: The phase state of atmospheric aerosols has significant impacts on global climate and atmospheric environment chemistry. Recent studies have shown that there is an unexpected phase transition of NaCl and (NH4)(2)SO4 when they are mixed with ultraviscous gluconic acid. The slower water diffusion in the mixed particles caused by the ultra-viscous property of gluconic acid leads to efflorescence upon hydration.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Engineering, Environmental
Zhe Chen, Pai Liu, Hang Su, Yun-Hong Zhang
Summary: Depletion of chloride, nitrate, or ammonium from atmospheric aerosols represents a unique class of displacement reactions, which can significantly modify the composition of aerosols and perturb the atmospheric cycle of volatile compounds. The study elucidated the thermodynamics and kinetics of these reactions, revealing lower effective dissociation constants and rapid kinetics in aerosol microdroplets. These findings suggest the importance of understanding the unique displacement reactions for predicting the properties of atmospheric aerosols.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Meteorology & Atmospheric Sciences
Tong Zhu, Mingjin Tang, Meng Gao, Xinhui Bi, Junji Cao, Huizheng Che, Jianmin Chen, Aijun Ding, Pingqing Fu, Jian Gao, Yang Gao, Maofa Ge, Xinlei Ge, Zhiwei Han, Hong He, Ru-Jin Huang, Xin Huang, Hong Liao, Cheng Liu, Huan Liu, Jianguo Liu, Shaw Chen Liu, Keding Lu, Qingxin Ma, Wei Nie, Min Shao, Yu Song, Yele Sun, Xiao Tang, Tao Wang, Tijian Wang, Weigang Wang, Xuemei Wang, Zifa Wang, Yan Yin, Qiang Zhang, Weijun Zhang, Yanlin Zhang, Yunhong Zhang, Yu Zhao, Mei Zheng, Bin Zhu, Jiang Zhu
Summary: In the past 25 years, atmospheric chemistry research in China has grown rapidly, focusing on the concept of air pollution complexity. Over 24,000 papers on air pollution, authored or co-authored by Chinese scientists, were published in 2021. This paper reviews representative studies on various aspects of atmospheric chemistry in China, providing a starting point for understanding the field. The advances discussed in this paper have established a theoretical framework for air pollution, supported effective air pollution control policies in China, and created opportunities for education and career development.
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Article
Environmental Sciences
Wen-Xiu Pei, Shuai-Shuai Ma, Zhe Chen, Yue Zhu, Shu-Feng Pang, Yun-Hong Zhang
Summary: This study investigates the heterogeneous uptake of NO2 by sodium acetate droplets under different NO2 concentrations and relative humidity conditions using micro-FTIR. The results show that the uptake coefficient of sodium acetate droplets is influenced by relative humidity and the volatility of acetate esters. Additionally, nitrite formation is observed during the heterogeneous uptake process, providing a new pathway for atmospheric nitrogen cycling and secondary nitrite aerosol formation.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Physical
Xinbo Jing, Zhe Chen, Xue Cao, Qishen Huang, Pai Liu, Yun-hong Zhang
Summary: Sulfate formation from SO2 during urban haze events in China is a complex process with the important contributions of regionally transported sea spray aerosols (SSAs) and transition-metal ions (TMI)-catalyzed reactions. The reaction kinetics of Mn2+-catalyzed SO2 oxidation in NaCl microdroplets were investigated, revealing a linear correlation between reaction rate and droplet radius. The saturation concentration for both Mn2+ and SO2 implied an upper limit for the SO2 uptake coefficient, which increased with high ionic strength but was constant at pH levels of 5 to 8. The uptake coefficient was significantly higher than that of the uncatalyzed autoxidation of SO2 and other mineral dust oxidation pathways.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Environmental Sciences
Xue Cao, Zhe Chen, Yu-Xin Liu, Xin-Bo Jing, Lin-Fang Li, Pai Liu, Yun-Hong Zhang
Summary: Sulfate aerosols are produced at a rapid rate in China's winter haze, and this is believed to be due to the heterogeneous conversion of SO2 in urban aerosols. A study conducted in levitated microdroplets has directly measured the Fe(III)-catalyzed SO2 conversion in aerosols and found that it is 2 to 3 decades faster than in bulk solutions. The reaction rate is proportional to the droplet surface area, indicating that the major reaction occurs at the air-water interface.
ENVIRONMENTAL SCIENCE-ATMOSPHERES
(2023)
Article
Environmental Sciences
Shuaishuai Ma, Qiong Li, Yunhong Zhang
Summary: In this study, the hygroscopic growth and chemical composition evolution of NaNO3 and DCAs mixtures were measured using ATR-FTIR and vacuum FTIR techniques. The results showed that the phase state of NaNO3, chemical composition, water activity, and HNO3 gas-phase diffusion play crucial roles in HNO3 release from nitrate and DCA mixtures.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
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)
