A5019313946- Intermetallics and Advanced Alloy Properties
- High-Temperature Coating Behaviors
- Metal and Thin Film Mechanics
- High Entropy Alloys Studies
- Surface Treatment and Coatings
- Metal Alloys Wear and Properties
- Material Properties and Applications
- High Temperature Alloys and Creep
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloys Composites Properties
- Catalytic Processes in Materials Science
- Metallurgical and Alloy Processes
- Advanced ceramic materials synthesis
- Titanium Alloys Microstructure and Properties
- Nuclear Materials and Properties
- Advanced materials and composites
- Nuclear reactor physics and engineering
- Diamond and Carbon-based Materials Research
- Thermal properties of materials
- Additive Manufacturing Materials and Processes
- Fatigue and fracture mechanics
- Copper Interconnects and Reliability
- Nuclear and radioactivity studies
- Graphite, nuclear technology, radiation studies
- Energetic Materials and Combustion
Rzeszów University of Technology
2011-2024
Lviv Polytechnic National University
2002
Škoda (Czechia)
1977
Abstract An investigation was conducted to synthesize βNiAl coating on the nickel based superalloy Mar M247 in a chemical vapor deposition process (CVD). The low activity of aluminizing carried out for 8 hours at temperature 1050°C. Surface morphology and cross-section microstructure diffusion were studied compared by using an optical microscope, scanning electron microscope (SEM) equipped with energy dispersive spectroscopy X-ray diffractometer. It found that aluminide thickness 37 μm...
This paper presents the results of laser surface treatment Ti–6Al–4V two phase titanium alloy. It was carried out in order to modify microstructure and properties alloyed zone. Laser performed on samples coated by graphite BN powders stream nitrogen form martensitic phase, nitrides, carbides borides as a consequence irradiation. The melted zone examined its composition were determined. Microstructural analysis using Epiphot 300 optical microscope Novascan 30 scanning electron equipped with...
Abstract Graphene oxide/rubber composites were experimentally investigated for obtaining their thermal properties. Three kinds of the composite matrix material have been used: NBR, HNBR and FKM. The reduced graphene oxide in form crumped flakes has applied as filler influencing on conductivity composites. Two values weight concentration taken into account investigation. Thermal basic measured by professional apparatus with use guarded heat plate method. Before measurements preliminary tests...
Abstract The research samples used in this study were based on the Inconel 625 alloy; examined coated with aluminide films deposited a low-activity chemical vapor deposition (CVD) process. samples’ microstructure was investigated optical and electron microscopy energy dispersive X-ray spectroscopy analysis. Hardness measurements performed using Vickers Berkovich test methods. adhesion of coating determined by fractography. It shown that fracture mechanism different for respective zones...
Thermal Barrier Coatings are the main type of coatings used for protecting turbine blade surfaces and surface modern jet engines combustion chamber parts. Depending on engine element, produced as plasma-sprayed MeCrAlY bond-coats with a ceramic outer layer or Pt-modified aluminide EB-PVD-deposited layer. Currently, research is being conducted deposition new consisting mulitlayer structure. In article, results study obtainment TBC's multilayer structure presented. To obtain metallic...
An investigation was conducted to synthesize βNiAl coating on the nickel based superalloy Inconel 625 in low activity chemical vapor deposition process (CVD). The carried out for 8 hours at 1050°C using BPXpro3252 IonBond company equipment. Surface morphology and cross-section microstructure of diffusion were studied compared an optical microscope, X-ray diffractometer a scanning electron microscope (SEM) equipped with energy dispersive spectroscope. It found that 29 μm thick aluminide...
In this paper, the structure of newly developed modified aluminide coatings is characterized.The platinum and palladium were obtained by an electroplating process.The Pt Pd electroplated samples aluminized also zirconium doping during CVD (Chemical Vapour Deposition) low-activity process.Aluminide deposited using industrial system.In process parameters are described as well results microstructural analysis.The chemical microstructure analysis was conducted electron microscopes equipped with...
The article presents the investigation of influence long-term annealing Zr modified aluminide coatings on its microstructure. were deposited by Chemical Vapour Deposition MAR M200+Hf nickel superalloy. Annealing was carried out in a vacuum furnace at temperature 1020°C within period 12, 16 and 20 hours respectively. microstructral analysis using Hitachi S-3400 scanning electron microscope. Phase changes layer observed, particularly NiAl phase into Ni 3 Al. Changes thickness individual layers...
The aim of the present work was to determine influence chemical composition coating protected nickel based superalloys Inconel 713 LC, 625 and CMSX 4 on oxidation resistance aluminide coating. Protective coatings were deposited in CVD process. low activity aluminizing at presence AlCl 3 H 2 carried out. Cyclic test for both coated uncoated performed 1100°C 1000 h air atmosphere. Microstructure after investigated by a scanning electron microscopy (SEM) an energy dispersive spectroscopy (EDS)....
The paper presents results of research into the aluminizing process TiAl intermetallics. substrate was Ti48Al2Cr2Nb intermetallic alloy. BPX Pro 325S CVD system used for process. Used in experimental were four types activators: AlCl 3 , AlF ZrCl 4 and HfCl . During 2 kg Al-Cr granules put a container. deposition carried out argon atmosphere duration hours at temperature 1000°C. XRD chemical analysis conducted. showed than aluminide coatings contained phases formed using an activator. In...
The article presents the experimental trial to connect aluminizing methods: VPA and CVD. Inconel 713 alloy was used as base material. purpose of process obtain a layer modified with more Zr than coatings deposited by conducted tests revealed intercrystalline corrosion in area β-NiAl phase granules, which indicates that precise selection processing conditions is key factor for Zr-modified aluminizing. resultant microstructural faults layer, however, didn’t impair properties PS-PVD-deposited...
The Zr modified aluminide coatings is an alternative concept for replacing Pt-modified bondcoat thermal barrier coatings. In the paper influence of process parameters on chemical composition and thickness will be presented. zirconia-doped coating was deposited turbine blades made from ZS6K nickel superalloy during low-activity CVD process. recent work blade geometry observed. thickest observed trailing leading edge cross-section. conducted research, light scanning electron microscopy were...
In the present study, microstructure investigation of aluminide coatings after platinum modification deposited by CVD method on Inconel 713 LC Ni-base superalloys were performed. The 3 and 7 m thick electroplating process. diffusion treatment at temperature 1050 °C was carried out for 2h. low-activity aluminizing heat treated conducted 8 h. On grounds obtained results it found that consisted two phases: γ-Ni (Al0.25Pt0.75)Ni3. low activity enables coating obtaining. main constituent (Ni,Pt)Al phase.
In the present work, Pyrowear53 steel was subjected to impulse carburizing LPC process. After carburation, material quenched and tempered. Postprocessing analyses included measurement of hardness, carbon content, residual austenite, stresses. The results revealed that thermochemical treatment resulted in formation an approximately 1200 µm wide carburized layer. austenite showed a continuous gradient (drop) measured values within However, stresses existence local extremum, namely, zone with...