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Year 2000 No 1

Jílek L.
FORGING HISTORY
Keywords:
No 1 (2000), p. 5-19

Besterci M., Ivan J., Kulu P., Arensburger D., Velgosová O.
FRACTURE MICROMECHANISM OF CU-CR-ZR SYSTEM BY "IN-SITU TENSILE TEST IN SEM"
Abstract
In the present work fracture mechanism of the Cu-Cr-Zr system was studied by "in-situ tensile test in SEM". It has been shown, that during tensile strain over the critical deformation the first cracks appeared due to the decohesion of matrix - large Cr particles interphase or by Cr particles failure. The further stress increase causes the cracks formation on matrix - small Cr particles interfaces and in the clusters of Cu5Zr intermetalics. The trajectory of final fracture was formed preferably by coalescence of cracks oriented about 67° to the loading direction. The model, presenting fracture mechanism in the investigated system was suggested.

Keywords: fracture mechanism|in-situ tensile test in SEM|PM copper alloys|
No 1 (2000), p. 20-24
  mag02.pdf (140 kB)
mag02_eng.txt (666 B)  

Jankura D., Varga V.
EFFECTS OF PARAMETERS ON THE PROPERTIES OF THE LASER WELDED THIN SHEETS
Keywords: laser welding|steel sheets|weld joint|welding parameters optimization|mechanical properties|metalographical analysis|
No 1 (2000), p. 25-33
  mag03.pdf (172 kB)
mag03_eng.txt (2 kB)  

Pliešovská N., Soláriková M.
STUDY OF EVAPARATION PROCESS IN DC ARC I. (HEAVY VOLATILE ELEMENTS)
Keywords: Optical emission spectral analysis|evaporation curve|Gibbs energy|fractional distillation|spectrochemical additives|
No 1 (2000), p. 34-41
  mag04.pdf (172 kB)
mag04_eng.txt (2 kB)  

Besterci M., Lachváč J., Velgosová O.
DEFORMATION OF COMPOSITE MATERIALS CU-AL2O3
Keywords: Cu-Al2O3 composites|powder metallurgy|deformation process|mechanical properties|structure|
No 1 (2000), p. 42-46
  mag05.pdf (192 kB)
mag05_eng.txt (2 kB)  

Ivanov A.
MATERIAL AUDIT AT REENGINEERING PROJECTS
Keywords: reengineering|material audit|management|
No 1 (2000), p. 47-54
  mag06.pdf (99 kB)
mag06_eng.txt (2 kB)  

Gallová Š., Gallo M.
STEEL MAKING PROCESS SOLVING BY EXPERT SYSTEM
Keywords: steel making process|rule-based expert system|fuzzy rule|membership function|
No 1 (2000), p. 55-60
  mag07.pdf (101 kB)
mag07_eng.txt (900 B)  

Gallová Š.
KNOWLEDGE ACQUISITION PROCESS FOR STEEL MANUFACTURING KNOWLEDGE-BASED SYSTEM
Keywords: information|knowledge-based system|knowledge acquisition|fuzzy model|membership value|
No 1 (2000), p. 61-66
  mag08.pdf (108 kB)
mag08_eng.txt (1 kB)  

Mikloš V., Fröhlich L.
TIN FROM AMORTIZATION WASTE
Keywords: electronic scrap|pressure leaching|tin|lead|
No 1 (2000), p. 67-73
  mag09.pdf (169 kB)
mag09_eng.txt (2 kB)  

Petrík J., Mihok Ľ.., Lesniaková Z., Soláriková M., Fröhlich L., Vadász P.
THE EXPLOITATION OF IRON ORE, SMELTING AND PROCESSING OF IRON IN THE SURROUNDINGS OF SPIŠSKÁ NOVÁ VES
Keywords: Spiš|iron metallurgy|archaeometallurgy|
No 1 (2000), p. 74-83
  mag10.pdf (216 kB)
mag10_eng.txt (3 kB)  

Mihok Ľ., Pribulová A., Fröhlich L., La SalviaV.
ARCHAEOMETALLURGIC RESEARCH OF FINDS FROM EXCAVATIONS IN LEOPOLI - CENCELLE
Keywords: Medieval|Iron smelting|Smithy production|
No 1 (2000), p. 84-89
  mag11.pdf (144 kB)
mag11_eng.txt (398 B)