Article
Materials Science, Coatings & Films
Musharaf Abbas, Arslan Khalid, Gregory M. Smith, Paul R. Munroe
Summary: This study investigates the formation behavior of Ni particles plasma sprayed onto AISI 1008 mild steel and 316 austenitic stainless steel substrates to compare the splat formation on both surfaces. Analytical techniques were used to analyze the characteristics of the splats formed on both substrates. Most of the observed splats were halo type splats driven by Rayleigh-Taylor instabilities. A linear relationship was found between the size of the splats' central core and their outer ring of debris, which was distinct for each substrate. Diffusion analysis showed a higher degree of diffusion across the interface between splat and stainless steel substrate, suggesting a better bond efficiency for stainless steel. Cross-sectional observations and theoretical calculations showed evidence of substrate melting and metallurgical bonds for both mild steel and stainless steel substrates.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
K. Bobzin, L. Zhao, H. Heinemann, E. Burbaum, S. Li
Summary: Heat-treatment can reduce structural defects and oxygen penetration in silicon coatings, but it decreases the fracture toughness and leads to an increase in mass gain rate.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Aminul Islam, Akanksha Sharma, Pushpender Singh, Niranjan Pandit, Anup Kumar Keshri
Summary: Atmospheric plasma sprayed CeO2 overlay on YSZ coating (CYSZ) improves its resistance against CMAS penetration and enhances thermal insulation performance.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Chemical
Haitao Lu, Jiajing Pan, Yu Gu, Junyi Xiao, Xiaofeng Hu, Long Tan, Mingli Lv
Summary: The powder deposition behavior and substrate surface evolution of the YSZ-NiCoCrAlY thermal barrier coating system were explored using a metal-ceramic bilayer powder deposition model. The results showed that the softening degree of NiCoCrAlY particles and YSZ particles differed, and their respective properties influenced the overall temperature and equivalent stress of the coating. The metal bond-layer served to protect the substrate and reduce the impact of the ceramic top-layer.
Article
Materials Science, Ceramics
V Carnicer, E. Canas, M. J. Orts, E. Sanchez
Summary: This study aims to develop zirconia ceramic coatings with silica aerogel particles for outstanding insulating properties, demonstrating the feasibility of dispersing aerogel in aqueous medium and producing stable suspensions. Suitable spray-dried powders were obtained in all cases, and coatings showed improved thermal conductivity with the addition of aerogel particles.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Jibo Huang, Xin Chu, Tin Yang, Huanjie Fang, Dongdong Ye, Weize Wang, Xiaofeng Zhang, Wen Sun, Renzhong Huang, Chang-Jiu Li
Summary: In this study, porous coatings with different flattened particles and pore structures were designed through an improved powder feeding process. The anti-sintering performance of the coatings can be improved by adjusting the pore structure.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Yongchao Fang, Xiufang Cui, Chao Yan, Zhuo Chen, Yongzhi Jing, Xin Wen, Guo Jin, Haoliang Tian
Summary: By studying the thermal cycling behaviors of LBT-YSZ and YSZ coatings at 1000 degrees Celsius, it was found that the thermal cycling lifetime of the LBT-YSZ coating was 27% higher than that of the YSZ coating. The LBT-YSZ coating exhibited different thermal cycling behaviors, with deflection and formation of slope cracks during quenching. Additionally, the lower fracture toughness of the LBT layer protected the central coating.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ivo Sulak, Karel Hrbacek, Karel Obrtlik
Summary: This paper investigates the effects of minimum temperature and phase shift on the thermo-mechanical fatigue behavior of Inconel 713LC. The results show that out-of-phase loading is less damaging than in-phase loading, with intergranular cavitation being the main damage mechanism for in-phase loading, and honeycomb structures and plastic strain localization being typical for out-of-phase loading. The increase in temperature range significantly reduces fatigue life, especially for out-of-phase loading. The prevailing damage mechanisms and lifetime behavior are discussed based on SEM and TEM observations.
Article
Materials Science, Ceramics
Ashish Ganvir, Mohit Gupta, Nitish Kumar, Nicolaie Markocsan
Summary: This study investigated the influence of suspension characteristics on the performance of suspension plasma sprayed thermal barrier coatings (TBCs), revealing that TBCs produced using different suspensions showed varied performance. TBCs produced using ethanol suspension exhibited the best TS lifetime, while TBCs produced using water suspension with solid load content showed the lowest lifetime. Additionally, TBCs produced using ethanol suspension showed slightly better thermal cyclic fatigue lifetime compared to TBCs produced using water and ethanol-water mixed suspensions.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ji Bo Huang, Wei Ze Wang, Yuan Jun Li, Huan Jie Fang, Dong Dong Ye, Xian Cheng Zhang, Shan Tung Tu
Summary: This study has shown that the novel-structured thermal barrier coatings (TBCs) exhibit superior performance compared to conventional and nanostructured TBCs in terms of thermal insulation ability, sintering resistance, durability, and thermal shock lifetime. The thermal conductivity of the novel-structured TBCs is significantly lower than that of the other two types, even after thermal treatment. The macroscopic elastic modulus of the novel-structured TBCs is comparable to the conventional and nanostructured TBCs after sintering, and their thermal shock lifetime is much longer.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Piao Li, Luca Susmel, Wen Jiang, Haibiao Yin
Summary: The porosity of nickel-base single crystals (NBSXs) is a casting problem that significantly affects their fatigue life. This paper proposes a porosity-distribution-related life prediction method to quantify the porosity effect. The size distribution of porosity in a NBSX is measured and regressed, showing that Feret's diameter follows a modified logarithmic normal distribution. The proposed method expresses the relationship between applied stress, porosity size, and lifetime. The disperse band of the S-N curve is investigated based on the probability distribution of porosity size, and the predicted S-N curve agrees well with experimental data.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Materials Science, Coatings & Films
Georg Mauer, Robert Vassen
Summary: Besides material selection, another approach to improve the thermal cyclic performance and reduce the thermal conductivity of ceramic thermal barrier coatings is to create microstructures with high porosity. This can be achieved by adjusting plasma spraying process parameters and powder feedstock to create partial melting of the powder particles and form desired porosity. However, this often results in lower deposition efficiency.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Emine Bakan, Yoo Jung Sohn, Robert Vassen
Summary: In this study, silicon-hafnia feedstock was plasma sprayed to form Environmental Barrier Coating bond coat. The analysis showed that above 700 degrees C, HfSi2 oxidizes and HfO2 transforms into monoclinic phase, leading to non-linear expansion behavior. After 100 hours at 1300 degrees C, the coating cracked extensively due to the formation of SiO2 and HfSiO4 during cyclic oxidation.
Article
Chemistry, Physical
Michal Bumbalek, Zdenek Joska, Zdenek Pokorny, Josef Sedlak, Jozef Majerik, Vlastimil Neumann, Karel Klima
Summary: This study investigated the possibility of using low-temperature plasma nitriding technology to improve the properties and fatigue life of NiTi dental instruments. The results showed that nitriding process can significantly increase the fatigue life of NiTi instruments in some cases. Nitrided files have promising possibilities for enhancing the surface properties and quality.
Article
Engineering, Mechanical
Tinglian Zhang, Jingyu Sun, Huang Yuan
Summary: This study quantifies the effects of laser recasting superalloy through experimental and computational investigations, establishing fatigue life assessment and describing the mechanical properties of the recasting material. The results confirm that the mechanical strength of the recasting material reaches nearly 50% of the base material, while its fatigue life is only about 1/10 of the base material.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Physical
T. J. Marrow, I Sulak, B-S Li, M. Vuksic, M. Williamson, D. E. J. Armstrong
Summary: Nano-indentation was used to study the (0001) surface of highly oriented pyrolytic graphite at temperatures up to 600 degrees C. The results revealed an increased tendency for inelastic deformation at high temperature, with buckling and kink formation of the graphite crystals.
Article
Materials Science, Ceramics
Adelia Kashimbetova, Karel Slamecka, Mariano Casas-Luna, Carolina Oliver-Urrutia, Simona Ravaszova, Karel Dvorak, Ladislav Celko, Edgar B. Montufar
Summary: This study investigates the effects of several factors on the mechanical strength of a calcium phosphate cement (CPC) and correlates the results with the microstructure and percentage of conversion to hydroxyapatite. The conversion rate increases with the setting temperature, but the strength shows an increasing-decreasing trend due to changes in the morphology of hydrated crystals. Different particle sizes of the cement have different optimal hydrolysis temperatures that result in varying strengths. The incorporation and crosslinking of gelatine increase the mechanical strength of the cement by bridging the hydroxyapatite crystals, and the setting temperature has a similar effect. Moisture decreases the strength and reduces brittleness by solvating intramolecular associations between crystals and between gelatine molecules. Size effect on strength is statistically insignificant.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Zhandos Shalabayev, Matej Balaz, Natalya Khan, Yelmira Nurlan, Adrian Augustyniak, Nina Daneu, Batukhan Tatykayev, Erika Dutkova, Gairat Burashev, Mariano Casas-Luna, Robert Dzunda, Radovan Bures, Ladislav Celko, Aleksandr Ilin, Mukhambetkali Burkitbayev
Summary: CdS nanoparticles were synthesized using cadmium acetate and sodium sulfide precursors. The addition of sodium thiosulfate as an additional sulfur precursor was investigated. The samples were characterized and tested for photocatalytic activity and antibacterial potential. The results showed that CdS prepared by combined milling had superior photocatalytic activity and inhibitory effect on bacterial growth.
Article
Nanoscience & Nanotechnology
Matej Balaz, Mariano Casas-Luna, Adrian Augustinyak, L'udmila Tkacikova, Kamil Szmuc, Maria Kovacova, Ladislav Celko, Yaroslav Shpotyuk
Summary: This study successfully prepared silver carbonate and elemental silver nanoparticles embedded in the matrix of biological materials using a solvent-free method. The optimized nanoparticles had a size of up to 15 nm and exhibited antibacterial activity. Different combinations of reducing agents showed varying inhibition effects against different bacteria.
APPLIED NANOSCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Alice Chlupova, Ivo Sulak, Tomas Babinsky, Jaroslav Polak
Summary: In this study, the fatigue behavior and initiation mechanism of intergranular cracks in polycrystalline copper specimens were investigated. Scanning electron microscopy was used to observe the crack formation on the electrolytically polished specimen surfaces, and a correlation was found between the occurrence of extrusions and intrusions on the grain boundaries and the formation of corrugated surface near the intergranular cracks. These findings contribute to a better understanding of the fatigue behavior and initiation mechanism of intergranular cracks in polycrystalline copper.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Ivo Sulak, Karel Hrbacek, Karel Obrtlik
Summary: This paper investigates the effects of minimum temperature and phase shift on the thermo-mechanical fatigue behavior of Inconel 713LC. The results show that out-of-phase loading is less damaging than in-phase loading, with intergranular cavitation being the main damage mechanism for in-phase loading, and honeycomb structures and plastic strain localization being typical for out-of-phase loading. The increase in temperature range significantly reduces fatigue life, especially for out-of-phase loading. The prevailing damage mechanisms and lifetime behavior are discussed based on SEM and TEM observations.
Article
Chemistry, Multidisciplinary
Matej Balaz, L'udmila Tkacikova, Martin Stahorsky, Mariano Casas-Luna, Erika Dutkova, Ladislav Celko, Maria Kovacova, Marcela Achimovicova, Peter Balaz
Summary: This research presents twelve Cu-based nanocrystalline sulfides as prospective antibacterial materials. The materials were synthesized through solvent-free mechanochemical synthesis and showed good antibacterial activity. The presented synthetic approach offers a promising alternative for the preparation of nanomaterials for biological applications and highlights ternary and quaternary sulfides as potential candidates for the next-generation antibacterial agents.
Article
Engineering, Mechanical
I. Sulak, K. Obrtlik, T. Babinsky, S. Guth
Summary: This study conducted high-temperature low-cycle fatigue experiments on nickel-based superalloy MAR-M247 at different strain rates. The deformation, damage, and lifetime behavior in relation to strain rate and cycle shape were observed. The results showed that the lifetime decreased as the strain rate decreased, indicating the negative influence of time-dependent creep and oxidation mechanisms. The lifetimes of the slow-fast and dwell-fatigue tests were lower than those for the fast-slow tests, despite the compressive mean stress in the former and tensile mean stress in the latter. Sl0w-fast and dwell-fatigue tests resulted in grain boundary cavitation.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Metallurgy & Metallurgical Engineering
E. Lokeshkumar, A. Kashimbetova, R. Shishir, P. Manojkumar, B. Ravisankar, E. B. Montufar, L. Celko, N. Rameshbabu
Summary: In this study, titanium scaffolds fabricated by direct ink writing with 50% porosity were surface treated by plasma electrolytic oxidation process. Three different coatings were fabricated using different nanoparticles. The coated scaffolds showed improved corrosion resistance and cytocompatibility compared to the uncoated scaffolds.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2023)
Review
Metallurgy & Metallurgical Engineering
Carolina Oliver-Urrutia, Adelia Kashimbetova, Karel Slamecka, Ladislav Celko, Edgar B. Montufar
Summary: Robocasting, also known as Direct Ink Writing, is an emerging additive manufacturing technology for titanium and its alloys. It uses a material extrusion method and requires the removal of binder before sintering. Currently, it has been successfully used to fabricate small porous titanium structures for applications such as bone repair and catalyst supports. While progress in robocasting of titanium materials is modest, it shows promising potential for advanced titanium applications.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2023)
Article
Engineering, Mechanical
Ivo Sulak, Karel Obrtlik
Summary: This study investigates the cyclic stress response and damage mechanism of Ni-base superalloy Inconel 713LC under thermomechanical fatigue loading. The cyclic stress-strain curves and fatigue life curves were evaluated, revealing the impact of phase shift and dwells on the material performance. SEM and TEM analysis of the microstructure provided insights into the effect of dwells on thermomechanical fatigue characteristics.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Ceramics
Jaroslav Cihlar, Lizeth Katherine Tinoco Navarro, Jaroslav Cihlar, Vit Kasparek, Jan Michalicka, Klara Castkova, Istvan Lazar, Jaroslav Kastyl, Ladislav Celko, Michal Vesely, Petr Dzik
Summary: Anatase/brookite nanoparticles were synthesized using low-temperature hydrolysis and polycondensation of titanium isopropoxide in the presence of acetic acid derivatives. The modified acetic acids formed bridges between neighboring titanium species, facilitating their condensation and the formation of Ti-O-Ti bonds. The resulting heterophase junctions between anatase and brookite exhibited high photocatalytic activity for hydrogen production when combined with a Pt cocatalyst. The photocatalysts had a mesoporous structure and large specific surface area, contributing to their high performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Karel Slamecka, Adelia Kashimbetova, Jaroslav Pokluda, Tomas Zikmund, Jozef Kaiser, Edgar B. Montufar, Ladislav Celko
Summary: This paper investigates the high-cycle fatigue behavior of novel titanium scaffolds with hierarchical porosity and properties comparable to those of human bone. Surprisingly, scaffolds with an open intrastrand pore network outperform those with compact strands in terms of endurance and fatigue strength. The improved fatigue performance is attributed to fatigue crack growth shielding effects, which reduce crack growth rate, prolong crack path, and increase energy absorption. These hierarchically porous titanium structures prepared by direct ink writing can safely serve under cyclic loading conditions and provide multiple open porosity-related functionalities.
MATERIALS & DESIGN
(2023)
Review
Polymer Science
Istvan Lazar, Ladislav Celko, Melita Menelaou
Summary: Aerogels are highly porous nanostructured solid materials with exceptional physical, chemical, and mechanical properties that offer great potential in various technological and biomedical applications. They show promise in tissue engineering, bone, and cartilage substitution. Evaluating the bioactivity of bone substitutes involves in vitro and in vivo testing using simulated body fluids, specific cell lines, and different animal species. This research focuses on investigating the applications of various aerogels in bone and cartilage tissue engineering, considering their specific materials, microstructure, and porosity. The study presents a comprehensive list and summary of different aerogel building blocks and their biological activities, and explores the influence of aerogel scaffold complexity on in vivo performance. The commonly used formulation and drying methods in aerogel chemistry are also discussed, highlighting their role in shaping aerogels for specific applications. The article acknowledges the challenges ahead and evaluates the future of aerogel-based hard tissue engineering materials, along with their potential connection with emerging healing techniques.
Article
Nanoscience & Nanotechnology
Gajanan Pradhan, Alessandro Magni, Federica Celegato, Marco Coisson, Gabriele Barrera, Lenka Mikulickova, Jon Ander Arregi, Ladislav Celko, Vojtech Uhlir, Paola Rizzi, Paola Tiberto
Summary: In this study, it is demonstrated through simulations and experiments that vortex states can be formed and stabilized in Fe80Ga20 and Fe70Ga30 disks, which is important for their potential application in strain-induced electric field control of magnetic states.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
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)
