MECHANICAL PROPERTIES OF TOOL STEELS WITH DIFFUSION CARBIDE AND NITRO-CARBON LAYERS
Abstract
The paper presents results of metallographic investigations and wear tests of the following tool steel grades: hot strain steels 4H5W2FS, 4H5MWS and cold strain steels H12, H12FS. All the surfaces have been hardened with the help of carbidizing and nitro-carbonizing processes in the powder medium. The following factors have been investigated: morphology, thickness and microhardness of the obtained samples, their microstructure and phase composition. It has been determined that the application of the proposed technology makes it possible to improve wear resistance of the investigated tool steels at sliding friction.
About the Authors
N. G. Kukhareva
Belarusian National Technical University
Belarus
Belarus
S. N. Petrovich
Belarusian National Technical University
Belarus
Belarus
N. A. Galynskaya
Belarusian National Technical University
Belarus
Belarus
References
1. Babul, T. The Effect of Initial Microstructure of Tool Steels on the thickness and Hardness of Layers Obtained by Way of Nitrocarburizing / T. Babul, A. Nakoneczny, N. Kucharieva // The 9th International Seminar of IFHTSE «Nitriding Technology – Theory and practice». – Warsaw, 2003. – Р. 437–444.
2. Бабул, Т. Влияние исходной структуры инструментальных сталей на толщину и твердость слоев, полученных в результате карбонитрирования / Т. Бабул, Н. Г. Кухарева, А. Наконечный // Металловедение и термическая обработка металлов. Машиностроение. – 2004. – № 7. – С. 17–20.
Review
For citations:
Kukhareva N.G., Petrovich S.N., Galynskaya N.A. MECHANICAL PROPERTIES OF TOOL STEELS WITH DIFFUSION CARBIDE AND NITRO-CARBON LAYERS. Science & Technique. 2007;(5):15-20. (In Russ.)
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