Article
Materials Science, Coatings & Films
Huixia Guo, Qinshuo Sun, Dapeng Zhou, Miao Yu, Yongxin Wang, Qiong Wang, Xiaojing Li
Summary: CrN, CrAlN, and CrAlN/CrN multilayer coatings were deposited on Ti6Al4V substrates using Multi-arc Ion Plating technique. The hardness, elastic modulus, and fracture toughness of the nitride coatings were characterized using nano-indentation and micro-cantilever test. Gas-solid erosion test was conducted to evaluate the erosion performance of the coatings, and the erosion resistance of the tested coatings was analyzed. The interface in the multilayer coating effectively hindered crack propagation, leading to enhanced erosion resistance. Erosion resistance was positively correlated with hardness and fracture toughness, with the CrAlN/CrN multilayer coating showing the best erosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Rong Tu, Jiao Jiao, Mingquan Jiang, Mai Yang, Baifeng Ji, Tenghua Gao, Qizhong Li, Song Zhang, Lianmeng Zhang
Summary: Hard coatings, such as transition metal nitrides, are widely used to improve the mechanical properties and tribological performance of cutting tools. This study deposited TiN/TiSiN coatings with various gradient and multilayer structures on cemented carbides, using cathodic arc ion plating. The coatings exhibited excellent hardness, compressive stress, coefficient of friction, and wear rate, with the modulation period playing a crucial role in determining their properties. Gradient and multilayer structures effectively mitigated the brittleness caused by the amorphous SiNx phase and optimized the coatings' performance.
Article
Materials Science, Ceramics
Y. H. Wang, F. Guo, H. Ren, S. Y. Hu, Y. J. Chen, Y. H. Zhao, F. Gong, Z. W. Xie
Summary: This study utilized the novel techniques of gradient bias voltage (GBV) and arc-enhanced glow discharge (AEGD) to refine the structure and improve the wear resistance of TiN coatings synthesized by arc ion plating (AIP). The results showed that the coatings without the GBV + AEGD technique exhibited a coarse surface and loose texture, while the coatings with the technique displayed a smoother surface and denser growth texture, leading to improved fracture toughness and outstanding wear resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Jingling Li, Zixiong Deng, Cuiyin Liu, Haibo Rong, Zhidong Zeng
Summary: In this study, multi-arc ion plating (MAIP) was used for the first time to prepare titanium nitride (TiN) nano arrays on a 3D current collector. The morphology, composition, crystal structure, electrical, and electrochemical properties of the TiN arrays were investigated under different working pressures. The optimized electrode showed a large specific capacitance and good stability, making it a promising candidate for ultrafast charging supercapacitors.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Chunlei Zhao, Wenjing Gao, Jun Wang, Jiang Ju, Jinlong Li
Summary: The NTNTs-TiN composite coating, prepared by combining physical vapor deposition technology and anodic oxidation, exhibits excellent tribocorrosion resistance, antimicrobial properties, and corrosion resistance. It forms a continuous water-lubrication film and reduces the coefficient of friction significantly, providing a new solution for the long-term safe use of implants in the human body.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Mirjam Bajt Leban, Tadeja Kosec, Matjaz Finsgar
Summary: In the additively manufactured TiAlV samples, a higher amount of ions was released in artificial saliva compared to wrought alloy samples. The total amount of ions released was 10 times higher in artificial saliva containing NaF, and 100 times higher in artificial saliva containing lactic acid.
Article
Optics
Zhonghua Li, Wenpeng Liu, Bin Liu, Shuai Yang, Zezhou Kuai, Yunfei Nie
Summary: Multi-laser selective laser melting (SLM) plays an important role in the large-scale and high efficiency forming of aerospace, automobile, and jewelry industries. This study compares the difference in microstructures and mechanical properties of Multi-laser SLM Ti6Al4V between overlap and no-overlap conditions. The results show that the number of scans affects the microstructure and surface roughness, with an optimal overlap width showing the least difference in tensile properties.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Chunling Li, Liguo Wang, Lunlin Shang, Xueqian Cao, Guangan Zhang, Yuan Yu, Wensheng Li, Shuzhen Zhang, Haitao Hu
Summary: The study found that the CrAlN/TiSiN multilayer coating has superior mechanical properties, wear resistance, and high-temperature oxidation resistance. It has a denser structure and can maintain a stable coefficient of friction as well as excellent wear resistance during high temperature friction.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Shiming Xie, Songsheng Lin, Qian Shi, Wei Wang, Chen Song, Wei Xu, Mingjiang Dai
Summary: In this study, MCrAlY coatings with different microstructures were prepared by arc ion plating to investigate their mechanical and thermal shock properties. The results indicate that the microstructure of the coating significantly impacts its thermal shock properties. A columnar structure exhibited poor thermal shock resistance, while a dense and laminar structure was found to be ideal. Increasing bias voltage during coating preparation can achieve the desired structure but may reduce oxidation resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Hui Sun, Alain Billard, Huan Luo, Wei-Tao Zheng, Xiao-Long Zheng, Ming-Jiang Dai, Song-Sheng Lin, Qian Shi, Frederic Sanchette
Summary: By introducing carbon atoms, the mechanical properties of TiN-Cu coatings can be significantly improved, achieving higher hardness, adhesion strength, and wear resistance. TiCN-Cu coatings exhibit high hardness and adhesion strength, with a relatively low friction coefficient at a certain carbon content.
Article
Materials Science, Ceramics
Mahdis Noori, Masoud Atapour, Fakhreddin Ashrafizadeh, Hassan Elmkhah, Giovanna Gautier di Confiengo, Sara Ferraris, Sergio Perero, Marilena Cardu, Silvia Spriano
Summary: Titanium alloys have poor resistance to friction, which negatively affects their corrosion behavior and osseointegration. Nanostructured PVD coatings with biocompatibility, anti-wear, and anti-corrosion characteristics are highly sought after in biomedical applications. In this study, TiN, ZrN, CrN/TiN, and CrN/ZrN thin films were coated on a Ti6Al4V substrate, and their physical-chemical properties, surface topography, wettability, hardness, adhesion strength, apatite-forming ability, and corrosion performance were investigated. The findings show that the multilayer coatings have higher hardness and scratch resistance. The CrN/ZrN multilayer coating exhibits the best corrosion resistance and hydroxyapatite precipitation, making it a potential candidate for orthopedic and dental implants.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Wei Wang, Shuqi Huang, Muhammad Yasir, Ming Lv, Chaoqian Guo, Qian Shi, Chunbei Wei, Songsheng Lin, Yuming Xiong, Mingjiang Dai
Summary: In this study, a heterogeneous-structure AlTiCrNiMo HEF was deposited on TC4 alloys and comprehensively evaluated using advanced characterization techniques. The HEF exhibited a unique microstructure with different types of structures. It showed excellent mechanical performance with high hardness, low wear rate, and good resistance to crack damage.
Article
Materials Science, Multidisciplinary
Y. Liu, H. D. Liu, Vasiliy Pelenovich, Q. Wan, J. L. Guo, Y. M. Chen, J. Zhang, L. J. Xue, Z. G. Li, B. Yang
Summary: By fabricating multilayer AlTiSiN/AlCrSiN coatings with different modulation periods (Lambda) and systematically investigating the effects of Lambda on the coatings, this study found that the coating at Lambda = 60 nm exhibited optimized hardness and elastic modulus, while the coating at Lambda = 25 nm possessed the highest adhesion strength and lowest coefficient of friction.
Article
Materials Science, Multidisciplinary
Jiaojiao Wu, Yuxian Cheng, Mingli Shen, Wei Wang, Ming Hu, Cean Guo, Xudong Lu, Shenglong Zhu
Summary: A coarse-grained thin Cr film was successfully prepared to protect Cu from oxidation and suppress abnormal Cr film/Cu interdiffusion. The well-adherent thin Cr film exhibited good oxidation resistance and superior thermal stability, showing great potentials for improving the high temperature applicability of Cu.
Article
Materials Science, Multidisciplinary
H. Xiao, J. Sun, W. Li, S. B. Liu, L. B. Fu, S. M. Jiang
Summary: The Pt modified NiCrAlYSi+AlY coating showed the best oxidation resistance due to the Pt addition decreasing the oxidation rate and Al consumption in the coating. Oxide pegs were observed at the interface between the oxide scale and Pt modified NiCrAlYSi+AlY coating after cyclic oxidation.