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Year 2000 No 4
Vallová S., Slovák V., Leško J.
THERMAL OXIDATION OF FINE GRAINED CARBONACEOUS MATERIALS IN THE PRESENCE OF ZN(II), FE(III) AND PB(II) COMPOUNDS
Keywords: thermal oxidation|coke|graphite|TG|kinetics|
No 4 (2000), p. 304-309
  mag01.pdf (93 kB)
mag01_eng.txt (983 B)  
Kulveitová H., Seidlerová J., Leško J.
RELATION BETWEEN THE ZN(II) CHEMICAL SPECIATION AND ITS ACID LEACHING FROM FINE GRAINED METALLURGICA
Keywords: metallurgical wastes|chemical speciation|acid leaching|
No 4 (2000), p. 310-317
  mag02.pdf (102 kB)
mag02_eng.txt (1 kB)  
Pavliska J., Jonšta Z., Mazancová E., Mazanec K.
MICROSTRUCTURE AND METALLURGY INVESTIGATION OF THE HOT DUCTILITY BEHAVIOUR OF STEELS
Keywords: residual element|transverse cracks|localised deformation|hot ductility|intergranular ferrite|acicular ferrite|
No 4 (2000), p. 318-326
  mag03.pdf (161 kB)
mag03_eng.txt (965 B)  
Sojka J., Hyspecká L.
ROLE OF THE MICROSTRUCTURE IN HYDROGEN INDUCED CRACKING OF CARBON - MANGANESE STEELS
Keywords: carbon manganese steel|heat treatments|microstructure|pearlitic bands|hydrogen induced cracking|
No 4 (2000), p. 327-335
  mag04.pdf (209 kB)
mag04_eng.txt (855 B)  
Schindler I., Bílovský P., Kubina T., Dänemark J., Radina M., Silbernagel A., Šarovský J., Kučera K.
CONTROLLED ROLLING OF A ST52-3 STEEL AT THE LABORATORY MILL TANDEM
Keywords: flat rolling simulation|laboratory rolling mill|plain-carbon steel|microstructure|mechanical properties|technology optimization|
No 4 (2000), p. 336-344
  mag05.pdf (214 kB)
mag05_eng.txt (646 B)  
Dobrovský Ľ., Kopečný M., Kostiuková G., Dobrovská J.
UTILIZATION OF THE SECONDARY SUBSTANCES IN THE TECHNOLOGICAL ROUTES OF PRETREATMENT OF PIG IRON
Keywords: preliminary treatment of pig iron|desulphurization|dephosphorization|slags|
No 4 (2000), p. 345-352
  mag06.pdf (189 kB)
mag06_eng.txt (641 B)  
Macoszek M., Brožová S., Kafka V., Bůžek Z.
POSSIBLE WAYS OF PLASMA HEATING FOR PROCESSING THE METAL-BEARING OXIDIC WASTES
Keywords: metal-bearing oxidic wastes|plasma heating|economical efficiency|calculated and processing costs|profit and profitability|
No 4 (2000), p. 353-362
  mag07.pdf (210 kB)
mag07_eng.txt (2 kB)  
Tomčík P., Hrubý J.
THE ACTION OF AC MAGNETIC FIELD ON COLD FORMING PROCESS AND COMPARISON OF FLOW STRESS CURVES
Keywords: magnetic domains|magnetostriction|electromagnetic volume power|change of the magnetic flux density in time|
No 4 (2000), p. 363-368
  mag08.pdf (199 kB)
mag08_eng.txt (466 B)  
Bajger Z., Michalec J., Kret J., Bajgerová D.
CONTRIBUTION TO METALLURGICAL TECHNOLOGY CONTROL PROBLEMS
Keywords: proceedings of metallurgical technologies|emissions|analysis of gases|kinetic equations|
No 4 (2000), p. 369-374
  mag09.pdf (157 kB)
mag09_eng.txt (721 B)  
Mohyla M., Kristofory F., Vítek J.
ELECTROFORMING - A PART OF ENGINEERING PLATING PROCESSES (TREATISE ON USE OF NICKEL ALLOYS)
Keywords: galvanic precipitation|electroforming|NiFe|NiCo alloys|metal models|
No 4 (2000), p. 375-379
  mag10.pdf (183 kB)
mag10_eng.txt (566 B)  
Podjuklová J., Mohyla M.
CONTRIBUTION TO THE STUDY OF THE PHASE BOUNDARY BETWEEN THE VITREOUS AND METALLIC PHASE
Keywords: phase boundary|metal|vitreous enamel|intermediate layer|cluster complex|
No 4 (2000), p. 380-387
  mag11.pdf (162 kB)
mag11_eng.txt (558 B)  
Vodárek V., Strang A.
MICROSTRUCTURAL CHANGES IN 12CrMoVNb STEELS DURING CREEP AT 550 C
Keywords: strengtht and toughness|creep properties|life degradation|substructural changes during ageing|
No 4 (2000), p. 388-395
mag12_eng.txt (1 kB)  
Mohyla P., Koukal J.
CHANGES OF MECHANICAL PROPERTIES IN 0,5CR-0,5MO-0,3V STEEL WELDS AFTER LONG TERM EXPOSITION AT HIGH TEMPERATURES
Abstract
Low - alloyed CrMoV steels serve in power and chemical systems at temperatures between 400 and 580°C. This corresponds to the creep as well as sub-creep range. Estimation of residual life after projected exposition seems to be a major economical and technical problem. Up to the present time, the model used for estimation of residual life does not consider changes of microstructure influencing mechanical properties. Especially mechanical properties of welds are influenced by long-term high-temperature exposition. During exposition of 0.5Cr-0.5Mo-0.3V steel (15 128) at temperatures below the creep range secondary hardening can be expected. During exposition of this steel in the creep range, a considerable fall of yield strength and hardness of welds and also parent material is observed.

Keywords: low-alloyed steel|CrMoV steel welds|the creep range|the sub-creep range|secondary hardening|coagulation|coarsening|additional precipitation|
No 4 (2000), p. 396-404
  mag13.pdf (207 kB)
mag13_eng.txt (810 B)  
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