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Purpose: The purpose of the article was to investigate the absorption and reflectance properties of chirped periodic layered medium with metamaterial layers. Design/methodology/approach: The use of the algorithm TMM (Transfer Matrix Method) allows to determine the absorption and reflectance for the quasi one-dimensional multilayer structures. Can be analysed structure constructed with RHM (right-handed...
Purpose: This work deals with solid particle erosion behavior of Inconel 718 at elevated temperatures. Design/methodology/approach: Samples with 3 mm thickness, 25 mm diameter were tested at 3 different temperatures (20°C, 400°C and 600°C); at 4 impingement angles (30°, 45°, 60°, 90°) in a specially designed erosion test rig by using 120 mesh (90-125 μm) Al2O3 abrasive particles. Solid particle erosion...
Purpose: The paper presents a comparison of the effects the processing time vibro-abrasive deburring and polishing process on the structure of the geometric surface. There is also analyzed the relationship between the duration of the treatment on the quality of sharp edges. Design/methodology/approach: Following the tests, the surface roughness and waviness of the machined job were measured by using...
Purpose: Purpose of the dissertation was accomplish qualitative and quantitative analysis of chemical composition of selected iron alloys using wavelength-dispersive spectroscopy (WDS) by calibration curve method. In this dissertation information about X-ray microanalysis physical basis and about X-ray detection in scanning electron microscope were presented. Design/methodology/approach: Research...
Purpose: This paper contains a comparative analysis of the computer simulation results and calculation results on engineering techniques used to estimate the parameters of the stress-strain state, as well as the efficiency of FEM plate rolling process modelling application. Design/methodology/approach: Development of a computer model of the rolling process was carried out considering assortment of...
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