Abstract
The aim of this research was to evaluate the influence of the laser alloying with Cr, Cr+B+Ni and B+Ni on the wear resistance of grey iron. Agricultural component (coulter flap) exposed on friction wear (as well as corrosion) in the soil has been take into account as a tested machine part. Even 85% decrease of mass loss of the coulter flap with laser alloyed layer (with nickel and boron) after wear test in comparison to mass loss of flap without laser treatment was achieved. In case of alloying with chromium it was 44% and in case of nickel, boron and chromium this decrease was 58%. Laser alloying in each perormed variant caused formation of the modified surface layer consisting of fine grains of mainly martensite enriched with alloy elements, increase of hardness of the surface layer and reduction of roughness parameters of the treated surface in comparison to the base surface.
Publisher
Uniwersytet Warminsko-Mazurski
Reference12 articles.
1. Burakowski, T.; Wierzchoń, T.: Inżynieria powierzchni metali, WNT, Warszawa, 1995
2. da Costa A.R., Vilar R. Erosion by solid particle impingement: experimental results with cast-iron, laser-treated surface, Tribology Letters 3(4), 1997, 379–385
3. Kusiński J: Lasery i ich zastosowanie w inżynierii materiałowej, Akapit, 2000
4. Minlin Z., Wenjin L., Hongjun Z., Corrosion and wear resistance characteristics of NiCr coating by laser alloying with powder feeding on grey iron liner, Wear, Vol. 260, Issues 11–12, 2006, 1349–1355
5. Napiórkowski, J.; Lemecha, M.; Konat, Ł. Forecasting the Wear of Operating Parts in an Abrasive Soil Mass Using the Holm-Archard Model. Materials 2019, 12, 2180