A5073924582- Microstructure and mechanical properties
- High Temperature Alloys and Creep
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Microstructure and Mechanical Properties of Steels
- Economic and Fiscal Studies
- Regional Development and Policy
- European Monetary and Fiscal Policies
- Advanced materials and composites
- Metallurgy and Material Forming
- Fatigue and fracture mechanics
- Nuclear Materials and Properties
- Intermetallics and Advanced Alloy Properties
- Metal Forming Simulation Techniques
- Fusion materials and technologies
- Consumer Behavior in Brand Consumption and Identification
- Titanium Alloys Microstructure and Properties
- Metal and Thin Film Mechanics
- Advanced Welding Techniques Analysis
- Education, Psychology, and Social Research
- Magnesium Alloys: Properties and Applications
- Advanced Materials Characterization Techniques
- Fire effects on concrete materials
- Material Properties and Failure Mechanisms
- Metal Alloys Wear and Properties
Czech Academy of Sciences, Institute of Physics of Materials
2015-2024
Central European Institute of Technology
2015-2024
Czech Academy of Sciences
2010-2022
University of Illinois Chicago
2006-2022
Prague University of Economics and Business
2012-2021
Metropolitan State University of Denver
2020
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and nanostructured materials with large densities of lattice defects. This field, also known as NanoSPD, experienced a significant progress within the past two decades. Beside classic SPD methods such high-pressure torsion, equal-channel angular pressing, accumulative roll-bonding, twist extrusion, multi-directional forging, various continuous techniques were introduced to produce upscaled samples. Moreover,...
Ultrafine-grained and heterostructured materials are currently of high interest due to their superior mechanical functional properties. Severe plastic deformation (SPD) is one the most effective methods produce such with unique microstructure-property relationships. In this review paper, after summarizing recent progress in developing various SPD for processing bulk, surface powder materials, main structural microstructural features SPD-processed explained including lattice defects, grain...
Cu/Al composites are perspective for applications in a wide range of industrial and commercial branches, from transportation to elecatrotechnics. This study focuses on clad composite wires with 5 mm diameter featuring unique sequencing produced via the technology rotary swaging at processing temperatures 20 °C 250 °C. During process, we continuously acquired samples investigations used our own KOMAFU S600 system dynamic detection forces. The subjected electrical resistivity measurement were...
For pipeline systems operating for a long time in thermal and/or power plants at high temperature and pressure, the degree of creep degradation is key factor their safe operation. The advanced 9% chromium creep-resistant P92 steel now widely used modern plant boiler pipes operated steam temperatures up to 650°C. In this work, relationship between deformation damage have been analysed. Constant load tensile tests were conducted 600°C under different applied stresses. microstructure evolution...
Purpose The purpose of this study is to investigate the impact luxury buyers' awareness a brand's corporate social responsibility (CSR) activities together with its individual brand-related sustainable dimensions (in terms economic, societal and environmental) values on purchase intention for products and, as result, highlight potential implications these relationships industry. Design/methodology/approach A model, which assumes an from traditional CSR, was indicated based authors' previous...
Processing through the application of severe plastic deformation (SPD), as in equal-channel angular pressing (ECAP), provides an opportunity for achieving exceptional grain refinement to submicrometer or even nanometer level. After SPD processing, these materials may be conveniently used evaluating effect a reduced size on creep behaviour at elevated temperatures under testing conditions constant load stress. This report overview properties ECAP-processed metals with emphasis microstructural...
Abstract The cast nickel-base MAR-M247 superalloy has been widely used for high-temperature components. In this work, the creep behaviour of two alternates with different grain size processed at temperatures casting are compared. Under testing conditions in study, only negligible differences alternate alloys were found and evaluated characteristics correspond to power-law or dislocation creep. microstructure consists a 𝛾 matrix eutectic, 𝛾' strengthening cubic precipitates, M 6 C 23...
The effect of ultrafine-grained size on creep behaviour was investigated in P92 steel. Ultrafine-grained steel prepared by one revolution high-pressure torsion at room temperature. Creep tensile tests were performed 873 K under the initially-applied stress range between 50 and 160 MPa. microstructure using transmission electron microscopy scanning equipped with an electron-back scatter detector. It found that exhibits significantly faster minimum rates, there a decrease value exponent...
The structure of high purity (99.99%) aluminium processed by equal channel angular pressing in the as pressed state after different number passes was examined using various stereological methods. An extreme inhomogeneity and complicated anisotropy observed along body rod-like specimens.
In this study, the creep behaviour of P92 steel in as-received condition and after longterm isothermal ageing was investigated at 600 650 • C using uniaxial tension tests.The testing carried out power-law region.The analyses data indicate that under investigation obeys both Monkman-Grant modified empirical formulas provides high values damage factor λ. The tertiary examined terms variations time to onset tot with fracture t f .To assess effect process on loss strength, most tests were...