Res. Agr. Eng., 2008, 54(4):192-198 | DOI: 10.17221/1/2008-RAE

Abrasive wear of high chromium Fe-Cr-C hardfacing alloys

R. Chotěborský1, P. Hrabě1, M. Müller1, J. Savková2, M. Jirka1
1 Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences in Prague, Prague, Czech Republic
2 New Technologies Research Centre in Westbohemian Region - NTC, University of West Bohemia, Pilsen, Czech Republic

Weld deposits are one of the most used economical ways of the wear resistance increase. The study compares the characteristics of the overlay material welded-on and the abrasive wear resistance. The research has been carried out using hardfacing alloys reinforced with primary chromium carbides and complex carbides. The overlay material was deposited on the low-carbon steel S235JR using the gas metal arc welding (GMAW) method. Four different commercial overlay materials were studied in terms of the microstructure effect. The abrasion wear testing was carried out using the abrasive cloth of grit 120 according to CSN 01 5084. The microstructure characterisation and surface analysis were made using optical and scanning electron microscopy. The results illustrate a significant effect of primary carbides on the abrasive wear resistance of weld deposits.

Keywords: hardfacing alloy; abrasive wear; Pin-on-disk; carbide

Published: December 31, 2008  Show citation

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Chotěborský R, Hrabě P, Müller M, Savková J, Jirka M. Abrasive wear of high chromium Fe-Cr-C hardfacing alloys. Res. Agr. Eng. 2008;54(4):192-198. doi: 10.17221/1/2008-RAE.
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