... at room temperature (RT). However, the effect of the MAO coating on the wear behaviour at elevated temperatures was investigated in limited works. In this study, the MAO process was performed on an AZ91 alloy in single-phase (silicate-containing) and dual-phase (aluminate+phosphate containing...

... magnetic field volume concentration negative viscosity ferrohydrodynamics coatings elastohydrodynamic lubrication hard disk drives lubricants magnetic bearings seals References [1] Rosensweig , R. E. , 1985 , Ferrohydrodynamics , Cambridge University Press , Cambridge...

...Amod Kashyap; A.P. Harsha; Sooraj Singh Rawat; Harish C. Barshilia The present investigation is focused on tribological studies of polyurethane (PU) based coatings doped with nano-MoS 2 , and MoS 2 functionalized with octadecanethiol (i.e., MoS 2 -ODT) on steel substrate. The PU-based nanocomposite...

... design faces considerable challenge to reduce friction losses, oil consumption, blow-by, and wear. Surface coatings have received great attention in applications of automotive engine components due to their unique friction properties. In this study, an elastic–plastic contact model of rough surfaces...

.../Ti6Al4V (Al 2 O 3 + TiN)/Ti6Al4V AISI304 steel substrate microstructural characterization microhardness wear and friction properties characterization coatings sliding surface layers surface properties and characterization wear mechanisms AISI304 steel is one of the widely used materials...

...Na Tyrer; Fan Yang; Gary Barber; Bo Pang; Bingxu Wang With the rapid growth in the use of electronics, more studies are focusing on the tribological performance of electrical connectors. The most common electroplating coating materials are tin and copper. One major issue is when fretting corrosion...

...Rohit Kumar Singh Gautam; Hemant Nautiyal; Rajnesh Tyagi; Vinayak Ranjan To reveal the effect of carbon content on tribological performance of coatings, TiAlC films having four different amounts of carbon content were synthesized using DC pulse magnetron sputtering. The amount of carbon was varied...

...Xinyu Wang; Xudong Sui; Shuaituo Zhang; Mingming Yan; Yan Lu; Junying Hao For improving the wear resistance, thick silicon doped hydrogenated amorphous carbon (a-SiC:H) coatings were deposited on cold working tool steels by plasma-enhanced chemical vapor deposition (PECVD) technology. The increase...

...A. S. Grenadyorov; A. A. Solovyev; K. V. Oskomov The paper presents the experimental study of the friction and wear characteristics of amorphous carbon coating containing hydrogen and SiO x (a-C:H:SiO x ) deposited onto WC-8Co cemented carbide substrates. A 5 µm thick a-C:H:SiO x coating...

...Neha Singh; Sujeet K. Sinha Liquid absorption and tribological studies of epoxy-based composite with ultra-high molecular weight polyethylene and MoS 2 , sliding against steel, were conducted. Composites, as coating and as a bulk, were soaked in water, base oil, ionic liquid, and lithium-based...

...Peter Renner; Swarn Jha; Yan Chen; Tariq Chagouri; Serge Kazadi; Mohamed Gharib; Hong Liang Effective design of corrosion-resistant coatings is critical for the protection of metals and alloys. Many state-of-the-art corrosion-resistant coatings are unable to satisfy the challenges in extreme...

... cutting of the spindles. Results show that the coating hardness and element penetration zone of No.3 spindle hook tooth are the largest, and the surface coating phase structure of the three kinds of the spindle is mainly a body-centered cubic structure of Cr (211). Micro-crack and hole defects exist...

...Renato B. Pessoa; Carlos A. H. Laurindo; Michelle S. Meruvia; Ricardo D. Torres; Alexandre Mikowski; Marcos E. Soares; Paulo Soares In this study, the influence of Al 2 O 3 particle amounts on the mechanical, tribological, and corrosion properties of the composite NiP-Al 2 O 3 coating was evaluated...

...X. H. Wang; S. S. Liu; G. L. Zhao; M. Zhang In situ TiN ceramic particle reinforced FeCoNiCrMnTi high entropy alloy coating was fabricated by laser cladding processing at high purity nitrogen gas atmosphere on the AISI 304 stainless steel substrate. The effect of Ti addition on the microstructure...

...F. J. G. Silva; R. C. B. Casais; A. P. M. Baptista; M. J. Marques; V. M. C. Sousa; R. Alexandre There are several ways to characterize the wear resistance of coatings in the laboratory, almost all of them applying relatively low contact pressure, both punctually and over surface contact. Pin...

... MoS 2 coating by incorporating TiO 2 and ZrO 2 nanoparticles as a reinforcement material into the MoS 2 base matrix. The composite MoS 2 -TiO 2 -ZrO 2 coating was applied onto substrate surface by the bonding technique. The tribological performance of the coated specimens was evaluated by employing...

...: wenyi.yan@monash.edu Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 31 01 2021 14 04 2021 14 04 2021 30 04 2021 laser cladding hypereutectoid rail wear rolling contact fatigue coatings Railway transportation...

... . 15 02 2021 15 04 2021 15 04 2021 30 04 2021 AlSi10Mg alloy selective laser melting wear friction oxide layer coatings dry friction surface properties and characterization surface treatments wear mechanisms Additive manufacturing (AM) is an emerging technology...

... and the similarity principle of PV value, in which the friction characteristics between pins with two different materials (C/C composite or cobalt-base alloy GH605) and discs with two different coatings (Cr 3 C 2 or Al 2 O 3 ) are tested and analyzed respectively; the test results show that the wear loss of all...

... , “ Characteristics of Ni-Based Coating Layer Formed by Laser and Plasma Cladding Processes ,” Mat. Sci. Eng. A , 417 ( 1 ), pp. 63 – 72 . [3] Khanna , A. S. , Kumari , S. , Kanungo , S. , and Gasser , A. , 2009 , “ Hard Coatings Based on Thermal Spray and Laser Cladding ,” Int. J. Refract...