A5022289811- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced Surface Polishing Techniques
- Laser Material Processing Techniques
- Tribology and Lubrication Engineering
- Surface Treatment and Coatings
- Tribology and Wear Analysis
- Adhesion, Friction, and Surface Interactions
- Advancements in Materials Engineering
- Additive Manufacturing and 3D Printing Technologies
- Building Energy and Comfort Optimization
- Material Properties and Applications
- Advanced materials and composites
- Welding Techniques and Residual Stresses
- Mechanical and Thermal Properties Analysis
- Manufacturing Process and Optimization
- Urban Heat Island Mitigation
- Mechanical Behavior of Composites
- Electromagnetic wave absorption materials
- Copper Interconnects and Reliability
- Noise Effects and Management
Kielce University of Technology
2020-2024
Abstract The work presents the use of laser texturing DLC coatings to improve tribological properties. were applied by PVD method rings made 4H13 steel. surface was performed with TruMICRO 5325c picosecond radiation wavelength λ = 343 nm. microstructure analysis, microgeometry and microhardness measurements tests carried out. problem presented in paper can be used extend knowledge areas application coatings, especially sliding friction pairs.
Microstructure and Tribological Properties of DLC Coatings RADEK Norbert, PIETRASZEK Jacek, SZCZOTOK Agnieszka, FABIAN Peter KALINOWSKI Artur Abstract. This paper presents the results diamond-like carbon coatings deposited using physical vapor deposition PVD process on 4H13 stainless steel samples. The properties were assessed by analyzing coating microstructure, nanohardness, roughness tribological tests. […]
Abstract A number of modern surface processing methods use an energy flux. The examples include electro-spark deposition (ESD) and laser beam (LBP). work concerns the study Cu-Mo coatings deposited on C45 carbon steel, which were then eroded with a beam. analysis included microstructure, measurements macrogeometry microhardness, corrosion resistance tests selected areas after treatment. applied ELFA-541 subjected to Nd:YAG treatment variable parameters. problem presented in can be used...
People tend to spend considerable amounts of time in buildings; thus the issue providing proper indoor environmental quality is significant importance. This paper experimentally analyses subjective sensations occupants intelligent and traditional buildings with focus on possible differences between these two types buildings. The study based a large database 1302 questionnaires collected 92 rooms where simultaneous measurements environment physical parameters (air globe temperature, relative...
Diamond-like carbon (DLC) coatings are currently used in many areas of the economy.Due to their unique properties, such as high hardness, low friction, and wear resistance, also industry, especially on machine parts exposed increased wear.The paper presents results operational tests diamondlike deposited physical vapor deposition (PVD) process samples made 4H13 stainless steel.The properties DLC were assessed based microstructure analysis, nanohardness roughness measurements, tribological...
This article presents a numerical analysis of laser-welded flange pipe joints. The presented results concern the welding low carbon S235JR and stainless 316L steels using CO2 laser in lap fillet joint configurations. estimation parameters was achieved Simufact Welding software simulation, where output power, feed rate, efficiency intensity distribution (Gaussian parameter) were analysed. In accordance with established model, thermo-mechanical simulation performed. calculated geometries show...
Abstract Laser surface texturing (LST) has emerged as a versatile and efficient technique for modifying properties across various materials. This paper provides an analysis of the characteristics diverse applications laser texturing. The begins by explaining fundamental principles underlying LST, highlighting mechanisms involved in material interaction resultant modifications. It explores influence parameters such pulse duration, energy density, wavelength on process, emphasizes their impact...
This paper investigates the impact of laser infrared radiation on surface modification DLC coatings. The authors found that texture created coating resulted in improved properties (smaller coefficient friction). They also observed certain fluency, waveform, frequency, and head scanning speed led to creating a relevant depth groove without completely removing thin (about 4 µm) coating. applied can be beneficial under conditions, for example, when coated parts work lubricated conditions....
Abstract. This paper presents a study on the impact of single-mode and multimode fiber lasers texturing diamond-like carbon coating surface (DLC). By varying laser process parameters, researchers analyzed how geometric profile grooves coated changed. The experimental results revealed significant differences based beam mode, suggesting precise control over properties DLC (diamond-like carbon) layer using an infrared beam. coatings were applied stainless steel 1.4034 PVD magnetron sputtering...
The article presents the Gaussian model of electromagnetic radiation attenuation properties two resin systems containing 75% or 80% a carbonyl iron load as an absorber in 4–18 GHz range. For values obtained laboratory, mathematical fitting was performed range 4–40 to visualize full curve characteristics. simulated curves fitted up 0.998 R2 value experimental results. depth analysis spectra allowed thorough evaluation influence type resin, load, and layer thickness on reflection loss...
Abstract. This paper presents the results of selection parameters for DLC coatings laser texturing process using a picosecond with wavelength 343 nm. It also shows level precision which it is possible to generate texture this technology and examples shapes created TruTOPS PFO software their best quality.
Protective coatings for machine parts can be economically viable if the wear is localized or coating material has different properties than substrate.Technological surface layers (TSLs) are applied to objects before use, while functional (FSLs) during maintenance.Laser modification a field of study that involves numerous research centers worldwide.By controlling laser parameters such as power, scanning speed, and pulse duration, it possible create with various properties, geometry,...