Article
Materials Science, Multidisciplinary
Linxin He, Chunhai Liu, Jinhui Lin, Qingsong Chen, Jijun Yang, Ruiqian Zhang, Hongyan Yang, Yu Wang, Jian Wang, Jianping Long, Qingshan Fu, Hong Chang
Summary: FeCrAl coatings with low Al content were deposited on Zr-4 substrates using radio frequency magnetron sputtering. The coating with a bias of -150V showed excellent high-temperature steam oxidation and corrosion resistance, with detailed discussions on the oxidation and corrosion mechanisms provided.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Coatings & Films
D. V. Sidelev, S. E. Ruchkin, M. S. Syrtanov, E. B. Kashkarov, I. A. Shelepov, A. G. Malgin, K. K. Polunin, K. V. Stoykov, A. A. Mokrushin
Summary: In this study, Cr coatings with CrN/Cr multilayers were deposited on E110 zirconium alloy by multi cathode magnetron sputtering, and their mechanical properties and oxidation resistance were evaluated. The results showed that the multilayers could only limit the interdiffusion between the coating and alloy for a short period at high temperatures.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
E. B. Kashkarov, D. V. Sidelev, N. S. Pushilina, J. Yang, C. Tang, M. Steinbrueck
Summary: In this study, Cr coatings with different structures and thicknesses were deposited on Zr alloy to investigate their oxidation behavior at different temperatures. It was found that the microstructure and thickness of the coatings significantly influenced the oxidation behavior of Cr-coated Zr alloy. The activation energy for chromium oxidation decreased significantly when the microstructure of the coating changed from dense to porous. In addition, the interdiffusion between Cr and Zr prevented the formation of chromium oxide film and caused direct oxidation of the alloy at high temperatures.
Article
Materials Science, Coatings & Films
Sha Zhao, Chunhai Liu, Jijun Yang, Wei Zhang, Linxin He, Ruiqian Zhang, Hongyan Yang, Jian Wang, Jianping Long, Hong Chang
Summary: A high-entropy alloy (HEA) AlTiCrNiTa coating with near-equal molar ratio was prepared on the base of zircaloy-4 substrates using RF magnetron sputtering technology. The coating exhibited almost amorphous structure with high hardness, effectively protecting the substrate from oxide after a 45-day autoclave test. The corrosion mechanism of the HEA AlTiCrNiTa coating was evaluated in detail.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Jiaqi Yang, Xiaoyong Wu, Lu Wu, Yilong Zhong, Hongyang Xin, Qingsong Chen, Wei Zhang, Jian Yang, Changda Zhu, Zhien Ning, Ning Liu, Jijun Yang
Summary: The effects of Al content on the microstructure, mechanical properties, and corrosion resistance of multiprincipal element alloy (MPEA) coatings were investigated. The results showed that increasing Al content led to an increase in the quantity of BCC nanocrystals in the coatings, resulting in higher hardness and elastic modulus. Al was found to promote weight gain and oxide layer thickening during a high temperature and pressure test. All the coatings exhibited superior protection for the substrate and provided a criterion for the design of Al-containing MPEA coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jianqiao Yang, Bochang Wang, Shurui Hu, Fen Zhao, Bo Han, Lunlin Shang, Yanguang Cui, Shuzhong Wang, Di Yun, Donghai Xu
Summary: A Cr-CrN-Cr coating was applied on Zr alloy to investigate the barrier effect of the CrN layer on Cr-Zr interdiffusion. Steam oxidation tests were performed under high-temperature conditions to evaluate the oxidation resistance and coating evolution. Atomic scale characterizations were conducted on the exposed sample. After HT annealing, a ZrN layer with nano twin crystals was successfully formed, serving as a diffusion barrier for Cr-Zr interdiffusion and inward diffusion of nitrogen/oxygen.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Jianqiao Yang, Lunlin Shang, Jiyuan Sun, Shuyuan Bai, Shuzhong Wang, Junkai Liu, Di Yun, Dayan Ma
Summary: In this study, a Cr-CrN-Cr coating was applied on Zr alloys to prevent Cr-Zr interdiffusion. The diffusion, decomposition, and oxidation behaviors of the coating were examined using a tube furnace. The outer and inner Cr layers were transformed into Cr2N, while a Zr2N layer acted as a diffusion barrier at the interface between the residual coating and Zr substrate. After oxidation, the coating structure consisted of Cr2O3, CrN, Cr2N, and Zr2N.
Article
Materials Science, Coatings & Films
Dongju Kim, Youho Lee
Summary: A mechanistic model based on Finite Difference Method (FDM) has been developed and validated to calculate Cr diffusion for Cr-coated Zircaloy cladding. The model has been incorporated into TRANOX 2.0. Experimental data was used to obtain chromium diffusion coefficients for each phase of the multilayered Cr-coated cladding. Extensive high temperature annealing experiments in the range of 1000-1300 degrees C confirmed the accuracy of the model predictions by comparing them with Cr distribution measured by EPMA. The developed model can predict diffusional loss coating thickness of Cr-coated Accident Tolerant Fuel.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Jishen Jiang, Dekui Zhan, Junnan Lv, Xianfeng Ma, Xiujie He, Dongqing Wang, Yanying Hu, Hailin Zhai, Jiajun Tu, Wenjie Zhang, Biao Wang
Summary: A comparative study was conducted on the tensile behaviors of CrN coating and Cr coating at both room temperature and 400 degrees C, showing that Cr coating exhibited brittle-toductile transition at 400 degrees C and better crack resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Hanxuan Su, Xiaoyong Wu, Lu Wu, Sha Zhao, Yuxin Zhong, Zhien Ning, Ning Liu, Jijun Yang
Summary: Five CrNb coatings with different Nb contents were prepared on zircalloy substrate using magnetron sputtering technology. The influence of Nb content on the microstructure, mechanical properties, high-temperature corrosion, and oxidation resistance of the coatings was investigated. The results showed that increasing Nb content improved the wear performance and nanohardness of the coatings, while the corrosion resistance remained relatively unaffected. The coating with 21at% Nb content exhibited optimal mechanical and high-temperature oxidation properties.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Wei Zhang, Yilong Zhong, Xi Qiu, Quan Li, Huifang Yue, Yi Zhou, Jiuguo Deng, Jian Yang, Hao Liu, Qingyu Li, Ning Liu, Jijun Yang
Summary: Sixteen types of FeCrAl coatings with different Cr and Al contents were prepared and their thermal shock resistance and static lead-bismuth eutectic (LBE) corrosion behavior were studied. The results indicate that coatings with poor thermal shock resistance also exhibited peeling during the corrosion test, and the corrosion resistance is strongly influenced by the Cr and Al composition. A relatively high Al content may be required for the FeCrAl coatings to maintain exceptional performance, which differs from the traditional design of FeCrAl bulk alloys.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Irena Kratochvilova, Lucie Celbova, Petr Ashcheulov, Jaromir Kopecek, Ladislav Klimsa, Esther de Prado, Katerina Aubrechtova Dragounova, Jakub Lustinec, Jan Macak, Petr Sajdl, Radek Skoda, Jiri Bulir
Summary: Controlling the hot steam corrosion of nuclear fuel tubes is crucial for power plant efficiency and safety. We demonstrate an effective method of protecting ZIRLO (R) (ZIRLO) fuel tubes against corrosion at accident temperatures in a water-cooled nuclear reactor environment. The order of the layers in the coatings strongly affects the ability of the double layer coating consisting of polycrystalline diamond (PCD) and magnetron-sputtered Cr to protect ZIRLO fuel tubes against hot steam corrosion.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jianqiao Yang, Ulrike Stegmaier, Chongchong Tang, Martin Steinbrueck, Mirco Grosse, Shuzhong Wang, Hans Jurgen Seifert
Summary: This study investigated the Cr-Zr interaction of two types of Cr coated Zr alloy ATF claddings deposited by cold spraying and magnetron sputtering at temperatures ranging from 1100 to 1300 degrees C. It was found that the interlayer growth rate of cold sprayed samples was slightly higher than that of magnetron sputtered samples, and the temperature-dependent consumption coefficient of the Cr coating was calculated.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Jishen Jiang, Xianfeng Ma, Biao Wang
Summary: The study found that the preoxidation temperature significantly affects the tensile properties of Cr-coated Zr-4 alloy. Preoxidation at lower temperatures can effectively reduce crack formation, while preoxidation at higher temperatures is more likely to result in the initiation of microcracks during tension, leading to premature failure.
Article
Materials Science, Multidisciplinary
Chongchong Tang, Martin Steinbrueck, Mirco Grosse, Sven Ulrich, Michael Stueber
Summary: Elemental Cr/C/Al multilayers were synthesized by magnetron sputtering, and the effects of annealing temperatures on their properties were studied. Nanocrystalline composite was obtained after annealing at 400 degrees C, and single-phase Cr2AlC was formed after annealing at 550 degrees C. The composite coatings annealed at 400 degrees C significantly improved high-temperature oxidation and hydrothermal corrosion resistance.
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)