Effect of the coating welding geometry on the wear of low carbon steel in contact with sugarcane bagasse
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This paper evaluated the effect of the welding deposits geometry in the wear of sugarcane rolls made of steel, coated with a layer of stainless steel and high-chromium white cast iron nuggets. A prototype was built which allows the simulation of the tribological pair steel-bagasse, mineral particles found in sugarcane mills. In terms of deposit geometry we evaluated radial nuggets varying the distance between them (step) and its inclination angle (B). As the secondary mineral we used silica with an AFS grain fineness number of 50/70. The wear was measured as the loss in specimen weight loss. We used scanning electron microscopy to analyze the worn surfaces. We found that a wear increased swiftly at the beginning of the process and tended to become constant constant as friction increases throughout the trajectory. We determined that geometry influences corrosion. The corrosion mechanisms found on the surfaces were plastic micro deformation or ploughing, and micro cut or cutting, generated by the silica particles.
Corrosion, sugarcane mills, corrosion mechanisms, weld deposits, sugarcane rollsDesgaste, molinos de caña, mecanismos de desgaste, depósitos de soldadura, mazas
AGUILAR, Y.; CASANOVA, F.; VICTORIA, R.; AGUIRRE, D. y UQUILLAS, B. Desgaste en acero de bajo carbono debido a la acción de bagazo limpio o contaminado con sílice y jugo de caña. Ingeniería y Universidad. 2011, vol. 15, núm. 2, pp. 373-384.
AGUIRRE, D. y CASTAÑEDA, H. Sinergia abrasión-corrosión dada en los molinos de caña producida por el bagazo y el jugo de la caña. Tesis de pregrado, Universidad del Valle, Cali, Colombia, 2009.
BEZER, V. y BOADA, O. Investigaciones naturales de la dinámica del desgaste en las piezas de la planta de moler de las centrales azucareras. Cuba Azúcar. 1976, enero-marzo, pp. 26-34.
BUCHANAN, V. E.; SHIPWAY, P. H. y MCCARTNEY, D. G. Microstructure and abrasive wear behavior of shielded metal arc welding hardfacings used in the sugarcane industry. Wear. 2007, vol. 263, pp. 99-110.
CASANOVA, F. y AGUILAR, Y. A study on the wear of sugar cane rolls. Wear. 2008, vol. 265, pp. 236-243.
CHATTERJEE, S. y PAL, T. K. Weld procedural effect on the performance of iron based hardfacing deposits in cast iron substrate. Journal of Materials Processing Technology. 2006, vol. 173, pp. 61-69.
PLAZA F.; HARRIS, H. D. y KIRBY, J. M. Modelling the compression, shear and volumen behaviour of final bagasse. Proceedings of the 2001 Conference of the Australian Society of Sugar Cane Technologists held at Mackay, Queensland, Australia, 1st-4th May, 2001, vol. 23, pp. 428-436.
VICTORIA, R.; UQUILLAS, B.; AGUILAR, J.; AGUILAR, Y. y CASANOVA, F. Abrasive wear effect of sugarcane juice on sugarcane rolls. Wear. 2010, vol. 270, pp. 83-87.