A5084343067- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Metallurgy and Material Forming
- Magnesium Alloys: Properties and Applications
- Metal and Thin Film Mechanics
- Advanced materials and composites
- Metal Alloys Wear and Properties
- Metal Forming Simulation Techniques
- Advanced machining processes and optimization
- Titanium Alloys Microstructure and Properties
- Orthopaedic implants and arthroplasty
- Powder Metallurgy Techniques and Materials
- Corrosion Behavior and Inhibition
- Bone Tissue Engineering Materials
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- High-Velocity Impact and Material Behavior
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Ocular Surface and Contact Lens
- Mechanical Behavior of Composites
- Tribology and Wear Analysis
- Microstructure and Mechanical Properties of Steels
- Energetic Materials and Combustion
Institute of High Pressure Physics
2014-2024
Polish Academy of Sciences
2014-2024
Warsaw University of Technology
2012
The study is concerned with the mechanical properties of Zn and three Zn–Mg double alloys Mg concentrations: 0.5%, 1.0% 1.5% in form rods a diameter 5 mm as potential materials for use biodegradable medical implants, such vascular stents. were cast, next conventionally hot extruded at 250 °C finally, hydrostatically (HE) ambient temperature. Occasionally HE process was carried liquid nitrogen temperature or combination ECAP process. After HE, microstructure made up fine-grained αZn mean...
Abstract To satisfy the most stringent criteria in terms of new cardiovascular stents, pure Zn was alloyed with 1 wt pct Mg and subsequently subjected to plastic deformation, using conventional hot extrusion followed by multi-pass hydrostatic extrusion. A detailed microstructural textural characterization obtained materials conducted, mechanical properties were assessed at each pass deformation process. In contrast Zn, hydrostatically extruded low-alloyed is characterized a remarkable...
Pure Zn is well-known for its appropriate corrosion rate, making it suitable use as future absorbable implants. Yet, suffers from insufficient strength, thus, both plastic deformation and alloying are required. Hydrostatic extrusion has proven to be an efficient technique, providing high mechanical properties zinc alloys. However, effect on degradation rate biocompatibility of alloys remains unknown. Thus, within the present study, attempt evaluate those been made hydrostatically extruded...
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...
Wrought Magnesium Alloys ZM21, ZW3 and WE43 Processed by Hydrostatic Extrusion with Back Pressure Cold hydrostatic extrusion without back pressure of commercial magnesium alloys has been performed at originally designed press operating up to 2000 MPa 700 MPa. were cold extruded in one pass into rods between 5 9 mm the outer diameter product velocities 1 10 m/min ratios above 2. Application extended formability all alloys. It was due superimposed on what inhibits cracks generation...
C65500 is a high strength engineering alloy that has excellent resistance to wide range of corrosive environments. Combination corrosion resistance, strength, and formability place it among the most widely used copper alloys. In present study, was subjected severe plastic deformation by hydrostatic extrusion at room temperature with goal increase its grain refinement without modification chemical composition. Cumulative applied total true strain 4.1. The microstructure SPD samples evaluated...
Abstract Cold hydrostatic extrusion with and without back pressure of commercial Mg 99.5+% AZ31, AZ61, AZ91 wrought magnesium alloys has been performed on a press operating up to 2000 MPa reaching 700 MPa. Application extended the formability Mg, AZ-type alloys, which decreases increase in Al content. Fibrous elongated grains above 1 micrometre nanometre scale sub-grains were observed. The strength all materials was significantly higher comparison conventionally hydrostatically hot-extruded,...
Abstract The study was concerned with the effect of severe deformation induced in one pass, by hydrostatic extrusion on properties fine aluminum, aluminum-silicon alloy, copper and silver wires. influence adiabatic heating which takes place during mechanical microstructure wires examined. quality surface estimated. It has been demonstrated that aluminum processed have very good a high-quality surface.
The paper presents an analysis of the impact plastic deformation using hydrostatic extrusion (HE) on structural, mechanical and functional properties pure copper for use as electrodes in process electro discharge machining (EDM). As part research, was subjected to HE with maximum cumulative true strain equal ɛcum = 3.89 obtained 5 stages. result was, a refinement microstructure grains elongated direction extrusion, cross-sectional size d2 228 nm. material can be potentially used machining,...
T1 relaxometry revealed the impact of plastic deformation on cytocompatibility biodegradable Zn–Mg alloy, i.e. , elevated production free radicals in endothelial cells, phenomenon associated with stable material degradation.
Cold hydrostatic extrusion with and without back pressure of ferritic-pearlitic grey cast iron EN-GJL 250 nodular EN-GJS 500-7 has been performed.The experiments were performed on a originally designed press operating up to 2000 MPa 700 MPa.Cast irons cold hydrostatically extruded in one pass ratios 1.77 2.12 for one, respectively.Nodular was also successfully ratio 1.35.Severe plastic deformation led axial alignment elongation graphite inclusions direction together sound flow the...
The study attempts to investigate the influence of severe plastic deformation (SPD in hydrostatic extrusion (HE) process on anisotropy structure and mechanical properties AA 6060 alloy.Material isotropic condition was subjected a single round with three different degrees (ε = 1.23, 1.57, 2.28).They allowed grain size be fragmented nanocrystalline level.Mechanical alloy, examined mini-samples, showed an increase ultimate tensile strength (UTS) yield (YS) as compared initial...
The research presented in this paper concerns the influence of rate plastic deformation generated directly processes severe deformations on microstructure and properties three metals: copper, iron zinc.The equal channel angular pressing (ECAP) method was used, it performed at a low ∼ 0.04 s -1 .The high strain obtained using hydrostatic extrusion (HE) with level 170 .For all tested materials different characteristic effects were demonstrated applied rates.The smallest differences mechanical...
The study aimed to examine the effect of hydrostatic extrusion (HE) process on machinability Ti grade 2 (Ti) in turning process. After deformation with true strain ɛ = 2.28, microstructure was significantly refined a grain size 100 nm, resulting an increase mechanical properties, UTS strength by 190%, YS yield 230%Cutting forces for initial state and after HE were analyzed at cutting depths ap 0.3 mm 0.5 mm, variables speed Vc (20, 30 50 m/min) feed rate f (0.08 0.13 m/s).The impact...
In this investigation, three different explosive materials have been used to improve the properties of titanium grade 2: ammonal, emulsion explosives, and plastic-bonded explosives. order establish influence hardening on treated alloys, tests were conducted, including microhardness testing, microstructure analysis, tensile corrosion tests. It has found that it is possible achieve a 40% increase in strength using plastic (PBX) as an material. On other hand, impact shock wave slightly...
The aim of this study was to show the effect manufacturing defects in a commercially pure Ti Grade 2 produced by laser beam powder bed fusion (PBF-LB) process on its high-cycle fatigue life. For purpose, performance PBF-LB compared ultrafine-grained (UFG) counterpart processed hydrostatic extrusion exhibiting similar mechanical properties under static tensile. yield strength and UFG 740 783 MPa, respectively. consisted typical columnar prior β grains with an acicular martensite α’...
This paper presents the effect of severe plastic deformation obtained using cold hydrostatic extrusion (HE) method on mechanical and structural properties polyamide 6 (PA6). As a result strain, significant increase in ultimate tensile strength modulus were observed. Tensile rose by almost 500%, up to level 508 MPa, whereas about 65%. Flexural was also observed 3230 i.e., approx. 160%. high deformation, structure changed significantly, as evidenced its fibrous nature presented results...
The study is aimed at comparing the changes which occur in microstructure and thermo-physical properties of pure copper (99.9%) when alloyed with chromium zirconium subjected to severe plastic deformation (SPD). techniques employed were hydrostatic extrusion (HE), equal channel angular pressing (ECAP), a combination these two processes. materials thus obtained had an ultra-fine-grained structure differing from those untreated materials. It appeared that there correlation between method...