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Year 2010 No 3

J. Bidulská, R. Bidulský, M. Actis Grande
EFFECT OF NEW TYPE HEAT TREATMENT ON WEAR CHARACTERISTICS OF HIGH-STRENGTH SINTERED STEELS
Keywords: high-strength steel|heat treatment|sinter hardening|sliding wear|
No 3 (2010), p. 146-150
  mag01.pdf (345 kB)
mag01_eng.txt (1 kB)  

J. Trpčevská, B. Hlucháňová, T. Vindt, W. Zorawski, D. Jakubéczyová
CHARACTERIZATION OF THE BOTTOM DROSS FORMED DURING BATCH HOT-DIP GALVANIZING AND ITS REFINING
Keywords: galvanization|microstructure|intermetallics|X-ray diffraction|dross formation|refining|
No 3 (2010), p. 151-156
  mag02.pdf (646 kB)
mag02_eng.txt (897 B)  

M. Hagarová, I. Štěpánek, D. Jakubéczyová
EVALUATION OF THIN PVD COATINGS BY ADHESIVE - COHESIVE TEST
Abstract
The paper deals with experimental evaluation of properties of PVD coatings. TiAlN, TiAlN/CrN and CrN coatings were deposited by ARC technology onto steel substrates, types S600, K190 Microclean and Vanadis 4 – Super Clean. The (TiAl)N/a-Si3N4 (thereinafter nACo) coating was deposited by advanced PVD procedure - LARC (LAteral Rotating ARC-Cathodes). Nanocomposite coatings (nACo) prepared by PVD technology based on low voltage arc and using two cylindrical central cathodes, which were made from Ti and AlSi. The surface of nanocomposite layer contained lower proportion of macro-particles compared to the Ti-Al -Cr- N layers which provided a guarantee of lower roughness and better quality of the respective layer. The coated systems were evaluated by a scratch test. Results of the test were documented by the graphical record of acoustic emission AE, friction coefficient and metallographic analysis on specimen surface produced by the test.

Keywords: PVD|ARC|LARC|nanocomposite coatings|scratch test|
No 3 (2010), p. 157-164
  mag03.pdf (267 kB)
mag03_eng.txt (960 B)  

T. Borovský, J. Kijac, M. Domovec
THE SLAG COMPOSITION INFLUENCE ON THE DEPHOSPHORIZATION AND ON THE LIFETIME OF ELECTRIC ARC FURNACE HEARTH REFRACTORY LINING
Keywords: electric arc furnace|dephosphorization|refractory wear|steel|slag|
No 3 (2010), p. 165-171
  mag04.pdf (258 kB)
mag04_eng.txt (679 B)  

V. Rusňáková, J. Kijac, G. Grimplini, G. Rusňák
ANALYSIS OF SLAG IN MOLD UNDER STANDARD CONDITIONS AND IN CASE OF STICKER TEMPERATURE ALARM OCCURENCE
Keywords: casting|interstitial free (IF) steels|casting powder|slag viscosity|break temperature|
No 3 (2010), p. 172-180
  mag05.pdf (255 kB)
mag05_eng.txt (716 B)  

P. Gavendová, F. Kováč, V. Stoyka, I. Petryshynets, T. Kvačkaj
EFFECT OF TEMPER ROLLING ON THE STRAIN HARDENING OF A NON-ORIENTED ELECTROTECHNICAL STEEL
Keywords: microhardness|strain hardening|cold rolling|hot rolling|
No 3 (2010), p. 181-185
  mag06.pdf (50 kB)
mag06_eng.txt (669 B)  

H. Lukáčová, B. Plešingerová, M. Vojtko, G. Bán
ELECTROCHEMICAL TREATMENT OF Ti6Al4V (1. PART)
Keywords: surface treatment|Ti6Al4V-alloy|electrochemical oxidation|
No 3 (2010), p. 186-193
  mag07.pdf (1 MB)
mag07_eng.txt (628 B)  

A.A. Baba, F.A. Adekola, G.D. Ewuloye
LEACHING OF LEAD FROM SPENT MOTORCYCLE BATTERY IN HYDROCHLORIC ACID. PART I: DISSOLUTION KINETICS
Keywords: leaching|dissolution|spent batteries|hydrochoric acid|
No 3 (2010), p. 194-204
  mag08.pdf (444 kB)
mag08_eng.txt (1 kB)