A5045948415- Tribology and Wear Analysis
- Lubricants and Their Additives
- Tribology and Lubrication Engineering
- Advanced Surface Polishing Techniques
- Metal and Thin Film Mechanics
- Additive Manufacturing Materials and Processes
- Particle Dynamics in Fluid Flows
Dalian Maritime University
2022-2025
In this work, 1,3-diketone synthesized via the Claisen condensation method and nano-copper particles modified by Brust–Schiffrin were added into a commercial marine medium-speed diesel engine cylinder piston oil to evaluate their effects on boundary lubrication performance. Friction wear tests conducted CKS-coated ring cast-iron liner samples demonstrated significant reductions in both friction with addition of particles. Compared original without additives, force was reduced up 16.7%, while...
Abstract Stringent requirements in emissions drive the application of low-carbon fuel engines, which result prominent friction and lubrication problems cylinder. Solid coating technology is an effective way to enhance tribological performance tribo-pairs has great potential solve lubricant problems. In this work, graphite, molybdenum disulfide (MoS2), tungsten (WS2) solid coatings were prepared on aluminum-based piston skirts, respectively. The wear behaviors three investigated using a...
Zinc phosphate chemical conversion coating possesses excellent tribological properties, which has attracted increasing attention. In this work, the friction, wear and anti-scuffing performance of zinc film applied on cylinder liners were studied using a self-designed friction experimental apparatus, can sufficiently simulate working conditions piston ring in real engine. The results indicate that comparing with uncoated liner, force total losses pairs for are reduced by 8% 27.5%,...
A piston skirt friction and wear apparatus that simulates the contact relative motion of cylinder liner in a real engine has been designed constructed. With this apparatus, behavior cast aluminum alloy with graphite coating under different loads was studied, effectiveness confirmed. The total higher load, upper part surface (around height pin) worn more severely. mechanisms were studied and, based on test results analyses, three main modes believed to occur process skirt: abrasive, adhesive,...