Article
Chemistry, Physical
A. P. Demirov, I. V. Blinkov, V. S. Sergevnin, A. O. Volkhonskii, A. V. Chernogor, I. V. Shchetinin
Summary: The electrochemical behavior and thermal stability of multilayered nanostructured Ti-Al-Mo-N coatings deposited using the Arc-PVD method were studied. The results showed that the stability of the coatings is influenced by the formation of Al2O3 layer, and this effect is more pronounced in the coatings with 8% Mo compared to those with 30% Mo. Furthermore, the thermal stability of the coatings with different Mo contents was investigated at high temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Mechanical
K. Bobzin, C. Kalscheuer, M. Thiex, K. Stahl, T. Lohner, E. Maier, M. Yilmaz
Summary: In this study, the self-lubrication mechanisms of PVD deposited Mo:S-modified nitride coatings (Cr,Al)N+Mo:S-g and Zr modified diamond-like-carbon coatings ZrCg were investigated. The results showed that (Cr,Al)N+Mo:S-g coating formed stable self-lubricating films under high pressure and pure rolling conditions, resulting in lower friction.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Dingwei Zhou, Zhenyu Wang, Yan Zhang, Jingjun Yan, Guanshui Ma, Xiaojun Hu, Peiling Ke, Aiying Wang
Summary: This study demonstrates that the multi-layer TiAl-N coating provides excellent protection for marine engines, despite some coating spallation and delamination during corrosion.
Article
Materials Science, Coatings & Films
Sergey Grigoriev, Alexey Vereschaka, Filipp Milovich, Vladimir Tabakov, Nikolay Sitnikov, Nikolay Andreev, Jury Bublikov, Catherine Sotova
Summary: This study investigates the structure and elemental composition of Ti-TiN-(Ti,Al,Nb,Zr)N coatings deposited using FCVAD technology, focusing on wear-resistant properties and diffusion processes at the coating-material interface during cutting experiments. The coatings showed nanolayer architecture and variation in element distribution within the ternary period, with diffusion of iron and coating elements detected at specific depths during machining processes.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Alexey Vereschaka, Sergey Grigoriev, Filipp Milovich, Nikolay Sitnikov, Mars Migranov, Nikolay Andreev, Jury Bublikov, Catherine Sotova
Summary: The article investigated the properties of a Cr,Mo-(Cr,Mo)N-(Cr,Mo,Al)N multilayer composite coating, finding that the adhesion component of the coefficient of friction varied with temperature and the diffusion layer thickness was significantly lower during cutting with the coated tool, indicating better cutting performance.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
S. M. Li, L. B. Fu, W. L. Zhang, W. Li, J. Sun, T. G. Wang, S. M. Jiang, J. Gong, C. Sun
Summary: In this study, an AlSiY coating and two MCrAlY + AlSiY composite coatings with different thickness of MCrAlY inter layer were prepared using arc ion plating (AIP) and vacuum annealing. The isothermal oxidation behavior of the coatings at 1100 degrees C for 300 h was investigated. The composite coatings showed better high-temperature oxidation resistance due to the addition of MCrAlY layer, which effectively prevented the diffusion of refractory elements to the outer layer. The inhibition of Al inward diffusion was stronger as the Si content increased in the outer layer during annealing.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Andreas Kretschmer, Tomasz Wojcik, Roman Schuster, Kumar Yalamanchili, Helmut Rudigier, Paul Heinz Mayrhofer
Summary: This study investigated the sputtering conditions and hardness variations of nitride coatings in different atmospheres, revealing changes in hardness values during vacuum annealing due to the influence of chemical composition.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Jaehui Bang, Eunkyung Lee
Summary: The surface properties of marine structures were improved by applying a twin wire arc spray process to high-strength low alloys. The effect of Al and Mo contents in Ni-Al coatings on their mechanical and corrosion behaviors was analyzed. The increase in Al content resulted in significant improvement in mechanical properties and corrosion resistance, while Mo content had an opposite effect. The microstructure of the coating layer was found to be correlated with the passivation film formation and the performance of the coatings.
Article
Chemistry, Multidisciplinary
Alexey Vereschaka, Catherine Sotova, Filipp Milovich, Anton Seleznev, Nikolay Sitnikov, Semen Shekhtman, Vladimir Pirogov, Natalia Baranova
Summary: Ti-TiN-(Y,Ti,Al)N coatings with different yttrium contents were studied, and their wear resistance and oxidation behavior were analyzed. Coatings with higher yttrium content showed better wear resistance but were more prone to oxidation. Nanolayers with high aluminum and yttrium contents were more susceptible to structural changes during oxidation.
Article
Engineering, Mechanical
D. S. Belov, V. S. Sergevnin, I. Blinkov, N. Smirnov, A. Chernogor
Summary: A comparative study was conducted on the wear resistance of nanostructured Ti-Al-Ni-N and Ti-Al-Ni-Mo-N coatings, with Mo and coating architecture impacting wear and erosion characteristics. Neither coating exhibited brittle failure, with increased fracture toughness attributed to plastic metal phase and specific structures. Both coatings demonstrated high resistance to water erosion wear, with Mo in Ti-Al-Ni-Mo-N coating reducing friction at elevated temperatures.
JOURNAL OF FRICTION AND WEAR
(2021)
Article
Materials Science, Multidisciplinary
A. V. Pshyk, I. Petrov, B. Bakhit, J. Lu, L. Hultman, G. Greczynski
Summary: Decreasing the growth temperature to reduce energy consumption and enable deposition on temperature-sensitive substrates during thin film growth by magnetron sputtering is crucial. High-mass metal ion irradiation of the growing film surface with ion energy controlled by metal-ion-synchronized biasing, allows to replace conventionally-used resistive heating. This study extends this method to industrial scale and investigates the effect of two parameters on Ti0.50Al0.50N film growth.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Damian M. Holzapfel, Denis Music, Marcus Hans, Silas Wolff-Goodrich, David Holec, Dimitri Bogdanovski, Mirjam Arndt, Anders O. Eriksson, Kumar Yalamanchili, Daniel Primetzhofer, Christian H. Liebscher, Jochen M. Schneider
Summary: The study explored the impact of oxygen incorporation on the thermal stability of (Ti,Al)N coatings, revealing that oxygen incorporation can enhance the thermal stability of (Ti,Al)(O,N) coatings, causing a delay in the formation of the wurtzite phase and requiring higher temperatures for the formation and growth of the wurtzite phase.
Article
Polymer Science
Tonica Boncina, Brigita Polanec, Franc Zupanic, Srecko Glodez
Summary: This study conducted a comprehensive experimental investigation on the wear behavior of coated spur polymer gears made of POM. The results showed that the metallization of aluminium coatings did not significantly affect the wear behavior of the analysed polymer gear. Additionally, gears with thicker aluminium coatings exhibited greater wear compared to gears with thinner coatings or without coatings.
Article
Materials Science, Coatings & Films
Mahshid Rashidi, Morteza Tamizifar, Seyyed Mohammad Ali Boutorabi
Summary: The Ti-Al-C-N coatings deposited on AISI H13 hot work tool steel substrates using PACVD method at different deposition temperatures exhibited varying microstructures and properties. Increasing the deposition temperature resulted in larger crystallite size, higher surface roughness, and increased micro-hardness values.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
M. L. Cedeno-Vente, J. Manriquez, G. C. Mondragon-Rodriguez, N. Camacho, A. E. . Gomez-Ovalle, J. M. Gonzalez-Carmona, J. M. Alvarado-Orozco, D. G. Espinosa-Arbelaez
Summary: The study found that bias voltages have a significant impact on the microstructure and electrochemical properties of ArcPVD CrN coatings. Increasing the bias voltage alters the grain structure of the coating and increases defect size, affecting the electrochemical response. By using an equivalent circuit, the coating's electrochemical response can be correlated with defect densities and sizes.
CERAMICS INTERNATIONAL
(2021)
