-
Article
Open AccessTribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump
The friction coefficient and wear rate of pretreated graphite with liquid nitrogen were obtained by using a ball-on-disk tester, and the wear of GCr15–graphite seal pairs with the low-temperature time-dependen...
-
Article
A Comparative Study on the Anti-Friction Performance of Amorphous Silicon Films Enhanced by WS2 Nanoflakes
Silicon has been irreplaceable for a long time due to its well-estiblished design and fabrication in the field of Micro-Electro-Mechanical System (MEMS). However, it has poor tribological properties, which lim...
-
Article
Application of Taguchi Method Design to Investigate Tribological Performance of Laser-Surface-Textured 316L Austenitic Stainless Steel
In this work, 316L austenitic stainless steel (ASS) was subjected to laser surface texturing to improve its tribological performance. The effects of surface texture parameters and service conditions on the tri...
-
Article
Characterization of microstructure, grain distribution, and tribocorrosion properties of NiTi-based alloy
Hardened 58Ni39Ti3Hf possesses a superior resistance to quenching cracking and spall-type surface fatigue as compared to 60NiTi, which makes it considered as an alternative for this binary intermetallic. Nonet...
-
Article
A Method for Measuring Interlayer Vacuum Degree of the Liquified Natural Gas Vacuum Multi-layer Insulation Pipe by Temperatures
It is difficult to obtain the interlayer vacuum degree of the LNG (liquified natural gas) vacuum multi-layer insulation pipe at any position, especially for pipes that are in service. Thus, this paper proposes...
-
Article
Open AccessEnhanced micro/nano-tribological performance in partially crystallized 60NiTi film
The microstructure, mechanical and micro/nano-tribological properties of the 60NiTi film annealed at different temperature were investigated. The results reveal that annealing as-deposited 60NiTi film at 300, ...
-
Article
Experimental and numerical investigation into the corrosion performance of X100 pipeline steel under a different flow rate in CO2-saturated produced water
The effect of flow velocity on the corrosion behavior of X100 steel in CO2-saturated produced water (CO2-SPW) was studied. Potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) were ...
-
Article
Tailoring Tribological Performance of Pure Titanium by a Duplex Treatment of Laser Surface Texturing-Thermal Oxidation
A combined surface treatment of laser surface texturing (LST)-thermal oxidation (TO) technique was performed on pure titanium (TA2) matrix to enhance its wear resistance. The dimple-shaped texture was fabricat...
-
Article
Nano-crystallization-Driven High Temperature Self-lubricating Properties of Magnetron-Sputtered WS2 Coatings
In consideration of high temperature conditions, this paper focuses on the self-lubricating properties of WS2 coatings at high temperature. A low coefficient of friction (CoF) about 0.07–0.2 for WS2 coatings can ...
-
Article
Ag-do** behavior on (8, 0) single-walled carbon nanotube with single C-vacancy or pyridine-like N3 defect: a DFT study
Single C-vacancy and pyridine-like N3 defect are usually formed on the single-walled carbon nanotube (SWCNT) and they have unique properties for potential applications. In this paper, we use density functional th...
-
Article
Low-friction behaviors of Ag-doped γ-Fe2O3@SiO2 nanocomposite coatings under a wide range of temperature conditions
In this paper, Ag-doped γ-Fe2O3@SiO2 nanocomposite coatings have been prepared by sol–gel method and deposited on steel substrate. The microstructure, surface topography, and high-temperature tribological propert...
-
Article
Influence of Zr–S co-do** on the electronic structure and optical properties of anatase TiO2: first-principles GGA + U method
Titanium dioxide has received much attraction in the field of photocatalysts applied for hydrogen production from the water splitting due to its unique set of desirable properties of non-toxicity, chemical and...
-
Article
High-temperature low-friction behaviors of γ-Fe2O3@SiO2 nanocomposite coatings obtained through sol–gel method
In the present paper, the γ-Fe2O3@SiO2 nanocomposite is prepared by sol–gel method and the γ-Fe2O3@SiO2 nanocomposite coatings are deposited on the steel substrate. The microstructure, surface topography, and tri...
-
Article
Microstructure, Chemical Composition and Local Corrosion Behavior of a Friction Stud Welding Joint
In this paper, friction stud welding technology was used to join a stud and base metal, which were composed of X65 steel. The scanning vibrating electrode technique (SVET) and localized electrochemical impedan...
-
Article
Open AccessGreen superlubricity of Nitinol 60 alloy against steel in presence of castor oil
In the present work, first, we show that sliding Nitinol 60 alloy against steel under castor oil lubrication exhibits a new case of superlubricity (coefficient of friction CoF ≪ 0.01). So far, CoF below 0.01 h...
-
Article
Understanding the Physical Adsorption Action Mechanism of MoS2 Nanoparticles in Boundary Lubrication with Different Polyisobutyleneamine Succinimide (PIBS) Concentrations
The lubrication mechanism of nanoinorganic particles during friction process has been widely investigated. However, the physical adsorption action mechanism between the nanoparticles (after modification) and f...
-
Article
Response of MC3T3-E1 osteoblast cells to the microenvironment produced on Co–Cr–Mo alloy using laser surface texturing
Osteoblast responses to Co–Cr–Mo alloy depend on not only the chemistry of alloy but also the physical properties of alloy surface, such as its microtopography and roughness. This study was undertaken to exami...
-
Article
Influence of Load and Sliding Speed on Super-Low Friction of Nitinol 60 Alloy under Castor Oil Lubrication
In the present paper, the influence of load and sliding speed on super-low friction of Nitinol 60 alloy was investigated experimentally using Nitinol 60 alloy pin sliding over GCr15 steel disk under castor oil...
