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Year 2012 No 2

E. Hryha, L. Nyborg
PROCESS CONTROL SYSTEM FOR DELUBRICATION OF PM STEELS
Keywords: powder metallurgy|prealloyed powder|delubrication process|
No 2 (2012), p. 60-68
  mag01.pdf (352 kB)
mag01_eng.txt (685 B)  

M. Maccarini, R. Bidulský, M. Actis Grande
ANALYSIS AND ASSESSMENT OF POWDER METALLURGY TECHNIQUES FOR ARMOUR ELEMENTS PRODUCTION
Keywords: Powder metallurgy|ballistic properties|armour|failure probability|
No 2 (2012), p. 69-75
  mag14.pdf (1 MB)
mag14_eng.txt (877 B)  

M. Besterci, O. Velgosová, J. Ivan, T. Kvačkaj, P. Kulu
FRACTURE MECHANISM OF DISPERSION-STRENGTHENED Cu-Al2O3 NANOSYSTEM
Keywords: dispersion strengthened Cu-Al2O3 composite|mechanical alloying|fracture mechanism|
No 2 (2012), p. 76-81
  mag12.pdf (226 kB)
mag12_eng.txt (842 B)  

K. Mroczka, A. Wójcicka, P. Kurtyka
2017A ALUMINUM ALLOY IN DIFFERENT HEAT TREATMENT CONDITIONS
Keywords: aluminum alloys|precipitation|tensile test|hardness|fracture|
No 2 (2012), p. 82-91
  mag04.pdf (381 kB)
mag04_eng.txt (650 B)  

J. Zapletal, P. Doležal, P. Gejdoš, M. Horynová
INFLUENCE OF HEAT TREATMENT ON MICROSTRUCTURE AND FATIGUE BEHAVIOR OF AZ61 MAGNESIUM ALLOY
Keywords: AZ61|magnesium alloys|solution heat treatment|low cycle fatigue|high cycle fatigue|
No 2 (2012), p. 92-99
  mag13.pdf (270 kB)
mag13_eng.txt (698 B)  

Yu.M. Azhniuk, V. Stoyka, V.V. Lopushansky, I. Petryshynets, F. Kováč, A.V. Gomonnai, D.R.T. Zahn
THERMAL DIFFUSION OF ZINC FROM ZINC-CONTAINING BOROSILICATE GLASS INTO CADMIUM CHALCOGENIDE NANOCRYSTALS
Keywords: interface diffusion|annealing|scanning electron microscopy (SEM)|energy dispersive X-ray spectroscopy (EDXS)|compound semiconductors|
No 2 (2012), p. 100-108
  mag06.pdf (423 kB)
mag06_eng.txt (682 B)  

E. Spišák, J. Majerníková
ANALYSIS OF VARIANCE OF MECHANICAL PROPERTIES OF SHEETS AS THE INPUT PARAMETERS FOR SIMULATION OF PROCESSES
Keywords: thin steel sheet|tension test|variability of mechanical properties values|strain hardening exponent|normal anisotropy coefficient|Shewhartcontrol|
No 2 (2012), p. 109-116
  mag07.pdf (512 kB)
mag07_eng.txt (864 B)  

M. Šlais, I. Dohnal, M. Forejt
DETERMINATION OF JOHNSON-COOK EQUATION PARAMETERS
Keywords: finite element modeling|constitutive equations|titanium alloys|
No 2 (2012), p. 125-132
  mag10.pdf (438 kB)
mag10_eng.txt (677 B)  

A. Kalendová, M. Kantorová
ANTICORROSION PEROVSKITE PIGMENT BASED ON STRONTIUM TITANATE
Keywords: perovskite|strontium titanate|coating|anticorrosive|pigment|anatase|
No 2 (2012), p. 117-124
  mag09.pdf (334 kB)
mag09_eng.txt (764 B)  

J. Spišák, M. Cehlár, V. Jacko, Z. Jurkasová, M. Pašková
TECHNICAL AND ECONOMICAL ASPECTS OF THE OPTIMISATION OF THE STEAM BOILER
Abstract
Steam boiler belongs to the principal energy sources. Its objective is the production of steam for the energy purposes. Because of gradual improvements its optimisation potential was almost exhausted. Steadily increasing environmental requirements and high production costs require compensation of their technical and operational parameters. More important contributions can be achieved by knowledge based optimisation, which would enable to operate the boiler at its technical and economical limitations. Presented paper is oriented on the boiler economical analysis. Performed analysis is based on operational data and on simulations executed on the mathematical model, specially generated for these purposes. Analysed were possibilities of the technical and operational optimisation. Possibilities of the individual alternatives were evaluated from the viewpoint of their impact on the production economy. From the achieved results follow important possibilities to increase the boiler economical effects while maintaining the environmental requirements.

Keywords: boiler|thermodynamics|boiler modelling|energy analysis|technical optimization|operational optimization|
No 2 (2012), p. 133-142
  mag11.pdf (738 kB)
mag11_eng.txt (1 kB)