Article
Materials Science, Coatings & Films
Ahmad Nourian, Sinan Mueftue
Summary: This study investigates the effects of substrate surface finish and particle impact velocity on the bond strength and fatigue performance of cold spray coatings. The results show that coatings prepared with helium gas have higher bonding strength and fatigue performance. Among the coatings prepared with nitrogen gas, coatings on low angle sprayed substrates have the highest bonding strength, while coatings on grit-blasted substrates have superior bonding strength compared to polished and semi-polished samples. However, the fatigue performance of low angle sprayed coatings is inferior due to cracks initiating in the coating and propagating into the substrate.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Viorel Goanta, Corneliu Munteanu, Sinan Muftu, Bogdan Istrate, Patricia Schwartz, Samuel Boese, Gehn Ferguson, Ciprian-Ionut Moraras, Adrian Stefan
Summary: This study investigated the fatigue behavior of standardized 4340 steel samples coated with WIP-C1 (Ni/CrC) by cold spray. The results showed that the coating influenced the damage on the surface of the base material but did not affect the fatigue durability curve.
Article
Materials Science, Multidisciplinary
Surinder Singh, R. K. Singh Raman, Christopher C. Berndt, Harpreet Singh
Summary: The cold spray process involves impacting high-speed feedstock particles onto a substrate without melting, retaining the bulk material properties without achieving good adhesion strength. Factors influencing adhesion strength include cold spray process parameters, substrate conditions, coating/substrate interactions, and feedstock material properties. Understanding these factors is necessary to achieve optimal input parameters for the best interfacial properties in coating/substrate combinations.
Article
Chemistry, Physical
Hanhui Liu, Naeem ul Haq Tariq, Yupeng Ren, Xiaonan Li, Xinyu Cui, Jiqiang Wang, Tianying Xiong
Summary: In this study, the adhesive feature of cold sprayed Al coating on PEEK substrate was investigated using various characterization techniques. The presence of chemical bonding at the Al/PEEK interface was confirmed, indicating the possibility of achieving metallurgical bonding during cold spray metallization of thermoplastics. This study provides experimental evidence for understanding the bonding mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Hanhui Liu, Naeem Ul Haq Tariq, Yupeng Ren, Lijia Zhao, Ying Yang, Xinyu Cui, Jiqiang Wang, Tianying Xiong
Summary: By adding an appropriate amount of Al2O3 particles to the feedstock, the performance of cold sprayed metallic coatings on polymer substrates was effectively improved. The addition of Al2O3 influenced the microstructure, deposition efficiency, microhardness, electrical conductivity, and adhesion strength of the coatings. Furthermore, the molecular structure of the substrate was not affected by the impact of Al and Al2O3 particles during the cold spray process.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Chemical
Ling Shao, Na Xue, Weiwei Li, Song Liu, Zhibiao Tu, Yingwei Chen, Jitang Zhang, Sheng Dai, Qijie Liu, Xinxing Shi, Tianle Wang, Mengliang Chen, Yingqi Huang, Feilong Xu, Liu Zhu
Summary: A solid-state cold-spray technique was used to deposit copper-coated graphite reinforced copper-based composite coatings on an aluminum alloy 6061 T6 substrate. The optimum process parameters of the cold-sprayed coatings were determined based on surface roughness, thickness, and adhesion. The results showed that the coating with the lowest surface roughness, maximum thickness, and highest adhesion was obtained at 800 degrees C, 5.5 MPa.
Article
Materials Science, Coatings & Films
Hanhui Liu, Naeem ul Haq Tariq, Yupeng Ren, Jing Luo, Housheng Liu, LiJia Zhao, Xinyu Cui, Jiqiang Wang, Tianying Xiong
Summary: Cold spray (CS) is an emerging deposition technique used to metallize polymer materials for improved thermal and electrical properties. This study successfully deposited pure Al coatings on PEEK substrate using CS, with the properties of the coatings improving with increasing accelerating gas temperature. At 380 degrees C, a dense and thick Al coating with high adhesive strength was achieved in just two deposition passes, showing the potential for enhanced properties in a more efficient manner.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zahra Sayyar, Javad Rahbar Shahrouzi, Ali Akbar Babaluo
Summary: A self-cleaning Fe/TiO2 surface coating was prepared on a ceramic substrate using the cold spray method based on sol-gel and hydrothermal processes. The effect of spraying operation conditions on the coated layer thickness was investigated using a numerical method. The results showed that the pressure, traverse speed, and standoff distance influenced the thickness of the coating. The proposed optimum condition exhibited good performance in photocatalytic and antibacterial tests.
Article
Materials Science, Coatings & Films
Long Xu, Chuanyu Cui, Qi Lu, Hao Yang, Wanyu Zhang
Summary: This study investigated the microstructure and corrosion behavior of cold-sprayed Zn11Al3Mg zinc alloy coating. The results showed that the coating had a finely structured ternary eutectic phase and exhibited enhanced corrosion resistance compared to cold sprayed Zn coating.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zhenpeng Zhou, Xiao Chen, Xiaozhen Hu, Sheng Li, Menglong Lv, Yiting Xie, Hailong Yao, Hongtao Wang, Xiaobo Bai
Summary: The influence of post-process heat treatment on cold-sprayed Zn coatings on the Mg alloy substrate was investigated. The study found that heat treatment affected the microstructure and microhardness of Zn coatings, as well as the tensile strength. However, the corrosion properties of the coatings were minimally affected.
Article
Materials Science, Multidisciplinary
Xiao Chen, Hongkai Zhou, Zhimin Pi, Zhiwu Huang
Summary: This study investigates the influence of different accelerating gas temperatures on the deposition performance of Ni-coated Al coatings by cold spraying. The results show that increasing the accelerating gas temperature enhances the embedding depth of Ni-coated Al particles into the Al substrate, but not on the Q235 steel substrate. Additionally, the morphology, phase composition, porosity, and thickness of the coatings are affected by the accelerating gas temperature.
Article
Chemistry, Physical
Rafal Zybala, Bartosz Bucholc, Kamil Kaszyca, Krystian Kowiorski, Dominika Sobon, Wojciech Zorawski, Dorota Moszczynska, Rafal Molak, Zbigniew Pakiela
Summary: Additive manufacturing (AM) has witnessed remarkable development recently due to its relatively high efficiency. Cold spraying (CS), a specific method of AM, is used for coating, repairing machine parts, and manufacturing new components. This study attempts to employ laser surface treatment (LST) for cold-sprayed coatings on an aluminium alloy substrate and investigates the influence of laser beam interaction time on the coatings' properties.
Article
Materials Science, Coatings & Films
Xingchao Mao, Fangcheng Duan, Fengyi Wang, Chunjin Hang, Hongtao Chen, Mingyu Li
Summary: A solderable coating was formed by low pressure cold spraying Cu-Al2O3 particles on an Al substrate. The metallurgical bonding between the cold sprayed copper layer and the Al substrate was confirmed by FIB-SEM and HR-TEM. Stacking faults, twins, and dislocations were observed near the Cu and Al interfaces due to plastic deformation caused by compressive shock. An atomic diffusion layer of about 100 nm, including ordered lattice structure (AlCu3), severely deformed lattice structure, and amorphous region surrounded by Cu and Al lattices, was discovered.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Energy & Fuels
Elena J. Cassella, Timothy Thornber, Robert D. J. Oliver, Mary E. O'Kane, Emma L. K. Spooner, Rachel C. Kilbride, Thomas E. Catley, Onkar S. Game, Alexandra J. Ramadan, David G. Lidzey
Summary: Defect management in perovskite solar cells through surface passivation is crucial for improving stability and efficiency. This study demonstrates the use of spray-coating technology to deposit iso-butylammonium bromide, resulting in the formation of a quasi-2D perovskite layer and significant improvement in device performance.
Article
Engineering, Manufacturing
Roberta Della Gatta, Antonio Viscusi, Alessia Serena Perna, Antonio Caraviello, Antonello Astarita
Summary: The deposition of steel powders on glass fiber reinforced polymer with the Cold Spray technique was investigated in this study. By using low-pressure cold spray equipment and optimizing process parameters, different coatings were obtained. Results indicated the bonding mechanisms and morphology of steel powders.
MATERIALS AND MANUFACTURING PROCESSES
(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)
Review
Materials Science, Coatings & Films
Wen Sun, Xin Chu, Haiming Lan, Renzhong Huang, Jibo Huang, Yingchun Xie, Jian Huang, Guosheng Huang
Summary: In recent years, cold spray technology has attracted more and more attention and has been industrialized and mass-produced. This paper summarizes the characteristics, material perspectives, and system developments of cold spray technology, and discusses its recent applications in various fields.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Wen Sun, Xin Chu, Jibo Huang, Haiming Lan, Adrian Wei-Yee Tan, Renzhong Huang, Erjia Liu
Summary: In this study, Inconel 718 coatings were deposited using the high-pressure cold spray technique, and post-process solution and double aging treatments were performed. The microstructures of the as-deposited and heat-treated IN718 were examined, and their mechanical properties were evaluated. The results showed that the original micro-dendritic structures in the powder were severely elongated during the cold spray process. After solution heat treatment, the segregations of Nb, Mo, and Ti were dissolved, transforming into MC carbide and a needle-like delta phase. The needle-like delta phase acted as a pinning effect to retard grain growth. Additionally, strengthening phases were formed through aging treatments. The mechanical properties of the cold-sprayed Inconel 718 were improved with proper solution and aging heat treatments.
Article
Materials Science, Multidisciplinary
Adrian Wei-Yee Tan, Nataniel Yong Syn Tham, Yao Shian Chua, Kaiqiang Wu, Wen Sun, Erjia Liu, Sung Chyn Tan, Wei Zhou
Summary: In this study, the nickel-based alloy Inconel 625 was successfully coated onto grey cast iron using cold spray process, and the diffusion effects between the coating and substrate after heat treatment were studied. The results demonstrated that the coatings had dense and defect-free interfaces and showed stable hardness at high temperatures. The potential application of cold spray on nickel-based alloy coatings for restoration and surface enhancement of grey cast iron components was also highlighted.
Article
Materials Science, Multidisciplinary
Kaiqiang Wu, Wen Sun, Adrian Wei-Yee Tan, Sung Chyn Tan, Erjia Liu, Wei Zhou
Summary: This research provides the first systematic study on the high temperature oxidation and oxychlorination behaviors of cold sprayed Inconel 718. The tests conducted at 700 degrees Celsius showed that cold sprayed Inconel 718 exhibited excellent oxidation resistance comparable to bulk Inconel 718. In the oxychlorination condition, a single-layer structure was observed in the scale of cold sprayed Inconel 718, in contrast to the double-layer scale in the bulk Inconel 718. The superior oxychlorination resistance of cold sprayed Inconel 718 was attributed to the smaller grain size and higher dislocation density.
Editorial Material
Materials Science, Multidisciplinary
Wen Sun, Adrian Wei-Yee Tan, Xin Chu, Jian Huang
Article
Materials Science, Multidisciplinary
Jibo Huang, Wen Sun, Renzhong Huang, Wenhua Ma
Summary: This study investigated the cracking behavior of plasma-sprayed thermal barrier coatings (TBCs) during service using a thermal shock test. It was found that the particle size of the agglomerated sintered yttria-stabilized zirconia (YSZ) powders had an impact on the cracking behavior of the TBCs during thermal shock. The fine YSZ coating had higher fracture toughness but lower strain tolerance, leading to faster crack propagation and coalescence. The coarse YSZ coating had larger porosity and pore size, reducing thermal stress and increasing strain tolerance, resulting in longer coating life.
Article
Materials Science, Coatings & Films
Jibo Huang, Wen Sun, Xin Chu, Haiming Lan, Yingchun Xie, Dongdong Ye, Renzhong Huang
Summary: In this study, NiCoCrAlTaY coatings were prepared on cobalt-based superalloy substrates by high pressure cold spray technology, and their microstructure, mechanical property, and tribological behaviors were systematically studied before and after thermal exposure at 1050 degrees C. The results showed that NiCoCrAlTaY coatings with a very dense structure could be obtained by high-pressure cold spraying. The coating remained completely intact without any cracking and spalling after thermal exposure. However, the wear resistance of the coating significantly decreased after thermal exposure with a decrease in hardness and an increase in friction coefficient and volume wear rate.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Medicine, General & Internal
Peter W. Horby, Marion Mafham, Leon Peto, Mark Campbell, Guilherme Pessoa-Amorim, Enti Spata, Natalie Staplin, Jonathan R. Emberson, Benjamin Prudon, Paul Hine, Thomas Brown, Christopher A. Green, Rahuldeb Sarkar, Purav Desai, Bryan Yates, Tom Bewick, Simon Tiberi, Tim Felton, J. Kenneth Baillie, Maya H. Bitch, Lucy C. Chappell, Saul N. Faust, Thomas Jaki, Katie Jeffery, Edmund Juszczak, Wei Shen Lim, Alan Montgomery, Andrew Mumford, Kathryn Rowan, David M. Weinreich, Richard Haynes, Martin J. Landray
Summary: This study evaluated the efficacy and safety of the combination therapy of casirivimab and imdevimab in patients hospitalized with COVID-19. The results showed that this combination therapy reduced the 28-day mortality rate in patients without detectable antibodies to SARS-CoV-2 infection at baseline, but not in those with detectable antibodies.
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)
