A5056838526- Advancements in Materials Engineering
- Surface Treatment and Coatings
- Metal and Thin Film Mechanics
- Metal Alloys Wear and Properties
- Minerals Flotation and Separation Techniques
- Intermetallics and Advanced Alloy Properties
- Metal Extraction and Bioleaching
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Mechanical and Thermal Properties Analysis
- Advanced Welding Techniques Analysis
- Extraction and Separation Processes
- Welding Techniques and Residual Stresses
- Structural Engineering and Materials Analysis
- Aluminum Alloys Composites Properties
- Mineral Processing and Grinding
- Advanced machining processes and optimization
- Advanced ceramic materials synthesis
- Material Properties and Applications
- Microstructure and mechanical properties
- Advanced Machining and Optimization Techniques
- Materials Engineering and Processing
- High-Velocity Impact and Material Behavior
- Engineering Technology and Methodologies
- Metallurgical Processes and Thermodynamics
Warsaw University of Technology
2016-2025
Institute of High Pressure Physics
2019
Advanced Applications (United States)
2018
Wrocław University of Science and Technology
1985-2017
AGH University of Krakow
2016-2017
Polish Academy of Sciences
2013-2014
Institute of Fundamental Technological Research
2013-2014
Mossakowski Medical Research Institute, Polish Academy of Sciences
2013
Monilek Hospital and Research Center
2013
University of Wrocław
1989-2008
Electrical discharge machining (EDM) is a modern technology that widely used in the production of difficult to cut conductive materials. The basic problem EDM stochastic nature electrical discharges. optimal selection parameters achieve micron surface roughness and recast layer with maximal possible value material removal rate (MRR) quite challenging. In this paper, we performed an analytical experimental investigation influence parameters: Surface integrity MRR. Response methodology (RSM)...
Ultrasonic wire bonding is a process of connecting two or more surfaces using metal wire. In battery manufacturing heavy used to connect cells with each other commonly printed circuit board (aluminum, plated bare copper) busbar by means diameters ranging 100-500 µm. Single sided cell that connections are made from one side on both positive (cap) and negative (crimp) terminals. The main advantages this method easy automation, low production time, easier recyclability, self-fusing properties...
Abstract The structure and hardness of the surface-welds fusion-welds made on a 2017A aluminum alloy waveguide using MIG TIG methods with without participation ultrasonic vibrations were examined. Cross-sections fusions thus obtained observed in microscope distributions determined. aim study was to analyze effects applied melted metal pool by vibrating substrate which our experiments waveguide. interactions molten during its solidification also heat-affected zone examined at various phases...
In this study, four protective coating materials: Inconel 718, 625, Alloy 33 and Stellite 6 were deposited on 16Mo3 steel tubes by means of CMT (Cold Metal Transfer), as an advanced version MAG (Metal Active Gas) welding method. the next step, surface was remelted TIG (Tungsten Inert SEM microstructure coatings–substrate has been reported, EDX-researched chemical composition coatings compared to nominal composition. The hardness distribution in cross-section performed, which revealed that...
The paper describes the microstructure of welded joints produced by plasma+MAG (Metal Active Gas) method S700MC high yield strength steel (700 MPa). Welded thermomechanical have been made with different values heat input. results metallographic research joints, weld and affected zone, hardness distribution impact toughness are presented. zone consists two sub-zones grain size lowered hardness. tensile test show that was slightly reduced bending revealed no crack formation in weld. measured...
The paper describes the selected properties of RAMOR 500 anti-ballistic (martensitic structure in initial state) high yield strength steel (1450 MPa) welded joints produced by hybrid PTA-MAG (Plasma Transferred Arc - Metal Active Gas) method. elements were metal sheets 6.7 mm thick a rectangular shape with dimensions 200 x 350 mm. tested butt weld have been made process parameters according to criterion lowest level material weakening heat-affected zone (HAZ). results metallographic research...
Intermetallic compounds from the Fe-Al system are attracting increasing attention due to their outstanding properties, including excellent mechanical performance, low density, corrosion, and oxidation resistance, as well resistance sulfidation, carburization, wear at elevated temperatures. These unique characteristics make intermetallics promising candidates for high-temperature harsh environmental applications. However, challenges such brittleness plasticity have hindered broader use. By...
The purpose of this study was to compare: a new five-layered poly (L–lactide–co–caprolactone) (PLC) membrane and small intestinal submucosa (SIS) as control in rat urinary bladder wall regeneration. prepared by an electrospinning process. Adipose tissue harvested from five 8-week old male Wistar rats. derived stem cells (ADSCs) were seeded density 3×106 cells/cm2 onto PLC SIS scaffolds, cultured for 5-7 days the cell culture medium. Twenty rats randomly divided into equal groups....
The paper presents the results of research on production by means arc spraying composite coatings from Fe-Al system with participation in-situ intermetallic phases. process was carried out simultaneously melting two different electrode wires, aluminum and steel. aim is to create protective a structure significant FexAly as an phases reinforcement. synthesis takes place during (in-situ) process. Currently most involving are manufactured thermal methods using coating materials in form...
The paper presents the microstructural investigation of a friction-welded joint made 316L stainless steel with an ultrafine-grained structure obtained by hydrostatic extrusion (HE). Such plastically deformed material is characterized metastable state energy equilibrium, increasing, among others, its sensitivity to high temperatures. This feature makes it difficult weld ultra-fine-grained metals without losing their mechanical properties. use high-speed friction welding and time <1 s...
The addition of Rhenium up to 6% Ni-Cr alloys can dramatically improve the corrosion and oxide resistance deposited coatings at high operating temperatures. Ni-Cr+Re layers be successfully produced using conventional powder metallurgy, rate solidification (HRS), or magnetron sputtering methods. However, in industrial applications, high-performance deposition methods are needed, e.g., laser cladding. Laser cladding has several advantages, metallurgical bonding, narrow heat-affected zone...
Wire bonding is a method of connecting two or more surfaces by the means thin wire which ultrasonically bonded to those and provides an electrical connection. While this well established in microelectronics industry its popularity rising area cylindrical lithium-ion battery pack manufacturing. Previous studies have shown that even experimental conditions process might be unstable was indicated high standard deviation bonds shear test results. This been related contamination interface between...
The paper presents the initial investigation results on producing surface protective coatings made of Fe–Al intermetallic compounds steel substrates. coating is obtained in a two-step process. First, substrate thermally sprayed with pure aluminium having thickness about 0.3° mm. In this way both components (Fe, Al) are prepared for subsequent melting and synthesis. final step, remelted together by CO 2 laser beam. resulting molten pool consists iron equal parts, allowing it to form compound...
The article presents selected properties of a titanium metallization coating deposited on aluminum nitride (AlN) ceramics surface by means the friction surfacing method. Its mechanism is based formation joint between an AlN substrate and thin Ti coating, involving kinetic energy friction, which directly converted into heat delivered in precisely defined quantity to resulting joint. largest effects final obtained include high affinity for oxygen nitrogen relatively temperature deposition...
This paper is a study of the microstructure and other selected properties solid-state, high-speed, rotary friction-welded tungsten mild steel (S355) joints. Due to high affinity for oxygen, welding process was carried out in chamber with an argon protective atmosphere. Joints suitable quality were obtained without any macroscopic defects discontinuities. Scanning electron microscopy (SEM) used investigate phase transformations taking place during friction process. Chemical compositions...
The article discusses microplasma arc applications in welding, surfacing and remelting processes, describes the effect of its burning conditions as well presents properties application range plasma welding.In addition, examples welded joints thin elements indicates advantageous features potential an alternative to other welding power sources.
Celem niniejszej
The broad range applications of Ultra-Fine Grained metals is substantially limited by the lack a welding method that allows them to be joined without losing strong refinement structure.From this point view, solid state processes are privileged.Friction tests were carried out on UFG 316L stainless steel.A joining process at high temperature activates recrystallization, therefore friction parameters selected according criterion lowest degree weakness due recrystallization in heat affected...