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Purpose: Constant demand for electric energy as well as legal and ecological conditions of the country motivate the construction of advanced ultra-supercritical AUSC power units. Increase of the steam parameters to about 700°C and pressure to over 30 MPa requires the application of modern nickel superalloys, which need to be characterized by structural stability at high temperature. The paper presents...
Purpose: The aim of the work is to investigate the microstructure heat treated and cold rolled commercial copper alloy CuTi4. Design/methodology/approach: The Investigations of the structure were made on ZEISS SUPRA 25 with EBSD method. Observations of the structure on thin foils were made on the JOEL 3010 transmission electron microscope (TEM). Findings: Decomposition of supersaturated solid solution...
Purpose: The substructure of austenite influences phase transformations during the austenite decomposition and consequently the final properties of the steel. Design/methodology/approach: Steel 0.5C-1Cr-0.8Mn-0.3Si was processed using the thermo-mechanical cycling simulator. Different methods of the thermo-mechanical processing were applied including austenitization at 950°C, compression deformation...
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