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Year 2012 No 3

E. Hryha, L. Nyborg
PROCESS CONTROL SYSTEM FOR DELUBRICATION OF PM STEELS
Keywords: powder metallurgy|prealloyed powder|delubrication process|
No 3 (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 3 (2012), p. 69-75
  mag02.pdf (1 MB)
mag02_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 3 (2012), p. 76-81
  mag03.pdf (226 kB)
mag03_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 3 (2012), p. 82-91
  mag04.pdf (632 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 3 (2012), p. 92-99
  mag05.pdf (610 kB)
mag05_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 3 (2012), p. 100-108
  mag06.pdf (657 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|
No 3 (2012), p. 109-116
  mag07.pdf (397 kB)
mag07_eng.txt (864 B)  

A. Kalendová, M. Kantorová
ANTICORROSION PEROVSKITE PIGMENT BASED ON STRONTIUM TITANATE
Keywords: perovskite|strontium titanate|coating|anticorrosive|pigment|anatase|
No 3 (2012), p. 117-124
  mag08.pdf (476 kB)
mag08_eng.txt (764 B)  

M. Šlais, I. Dohnal, M. Forejt
DETERMINATION OF JOHNSON-COOK EQUATION PARAMETERS
Abstract
The paper deals with the influence of strain rate on the mechanical behaviour of the Ti-6Al-4V titanium alloy. After verification tests under static loading conditions, the specimens were deformed at high strain rates using the device for the Taylor anvil test. Results of an image analysis of deformed specimens from the Taylor anvil test were used as a reference for the comparison of experiment and computer simulation in the ANSYS LS-DYNA 3D program. Using a new developed algorithm the parameters of Johnson-Cook equation were determined to obtain the best possible agreement between deformed shapes obtained by numerical simulation and by real experiment.

Keywords: finite element modeling|constitutive equations|titanium alloys|
No 3 (2012), p. 125-132
  mag09.pdf (453 kB)
mag09_eng.txt (677 B)  

J. Spišák, M. Cehlár, V. Jacko, Z. Jurkasová, M. Pašková
TECHNICAL AND ECONOMICAL ASPECTS OF THE OPTIMISATION OF THE STEAM BOILER
Keywords: boiler|thermodynamics|boiler modelling|energy analysis|technical optimization|operational optimization|
No 3 (2012), p. 133-142
  mag10.pdf (738 kB)
mag10_eng.txt (1 kB)