Wear resistance and hardness of nanostructured hardfacing coatings
Resistencia al desgaste de recubrimientos por soldadura nanoestructurados
Palabras clave:
Nanostructured, hardfacing, Abrasion, hypereutectic (en)Nanoestructurados, recubrimientos duros, abrasión, hipereutécticos (es)
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Abrasive wear is an important problema in industrial applications. The wear of tools in the mining industry is a costly issue, and it reduces equipment uptime. This study examined welded coatings obtained using a manual metal arc process with improved wear resistance. Their microstructure was studied by optical and electron microscopy. ASTM G99 (pin-on-disc) and ASTM G65 (dry sand/rubber wheel) wear tests were performed, and the worn surfaces were inspected to understand the wear mechanisms. The results show that the coating has a hypereutectic microstructure composed of austenite, NbC, and M7C3 carbides. The size of the nanocarbides was 91 nm; and the volume content, 5.3%. Hardness values were found around 1029 HV200 g, 15 seg. Low values of mass losses were attributed to the hypereutectic nanostructured hardfacing coating with extremely high hardness. The main wear mechanisms were microfracture and detachment of carbides and microcutting on the matrix.
El desgaste abrasivo es un problema importante en aplicaciones industriales. El desgaste de las herramientas en la industria minera es un problema costoso y reduce el tiempo de funcionamiento de los equipos. En este trabajo se evaluaron recubrimientos soldados de alta resistencia la desgaste obtenidos mediante un proceso manual de arco metálico. La microestructura fue analizada por medio de microscopía óptica y electrónica. Se realizaron pruebas de desgaste ASTM G99 (pin-on-disc) y ASTM G65 (arena seca / rueda de goma), y se inspeccionaron las superficies desgastadas para comprender los mecanismos de desgaste. Los resultados muestran que el recubrimiento tiene una microestructura hipereutéctica compuesta de carburos de austenita del tipo NbC y M7C3. El tamaño de los nanocarburos fue de 91 nm; y el contenido del volumen, 5.3%. Los valores de dureza se encontraron alrededor de 1029 HV200 g, 15 seg.. Se observaron bajas pérdidas de masa en el recubrimiento duro nanoestructurado los cuales pueden ser explicados por la microestructura hipereutéctica con alta dureza. Los principales mecanismos de desgaste fueron la microfractura y desprendimiento de carburos y microcorte en la matriz.
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Lancaster, J.K., ASM handbook, vol. 18, friction, lubrication and wear technology, Tribology International, 26(4), pp. 293-294, 1993. DOI: 10.1016/0301-679X(93)90010-X
Chaynes, P. and Farmer, H.N., Friction and wear behavior of hardfacing alloys, ASM Handbook., 18, 1992, 758 P.
Armao, F., Byall, L., Kotecki, D. and Miller, D., Gas metal arc welding: product and procedure selection, Cleval. Lincoln Global. Inc, 2014.
Khan, M.I., Welding science and technology. New Age International, 2007.
Balasubramanian, V., Varahamoorthy, R., Ramachandran, C. and Muralidharan, C., Selection of welding process for hardfacing on carbon steels based on quantitative and qualitative factors., International Journal of Advanced Manufacture Technology., 40(9/10), pp. 887-897. 2009. DOI: 10.1007/s00170-008-1406-8
Fan, C., Chen, M.C., Chang, C.M. and Wu, W., Microstructure change caused by (Cr,Fe)23C6 carbides in high chromium Fe-Cr-C hardfacing alloys, Surface and Coatings Technology., 201(3-4), pp. 908-912, 2006. DOI: 10.1016/j.surfcoat.2006.01.010
Buchely, M.F., Gutierrez, J.C., León, L.M. and Toro, A., The effect of microstructure on abrasive wear of hardfacing alloys, in Wear, 259(1-6), pp. 52-61, 2005, DOI: 10.1016/j.wear.2005.03.002
Dilawary, S.A.A., Motallebzadeh, A., Atar, E. and Cimenoglu, H., Influence of Mo on the high temperature wear performance of NiCrBSi hardfacings, Tribology International., 127, pp. 288-295, 2018. DOI: 10.1016/j.triboint.2018.06.022
Bowden, D., Stewart, D. and Preuss, M., Understanding the microstructural evolution of silicide-strengthened hardfacing steels, Materials and Design, 161, pp. 1-13, 2019. DOI: 10.1016/j.matdes.2018.09.015
Yüksel, N. and Şahin, S., Wear behavior-hardness-microstructure relation of Fe-Cr-C and Fe-Cr-C-B based hardfacing alloys, Materials and Design., 58, pp. 491-498, 2014. DOI: 10.1016/j.matdes.2014.02.032
Kirchgaßner, M., Badisch, E. and Franek, F., Behaviour of iron-based hardfacing alloys under abrasion and impact, Wear, 265(5-6), pp. 772-779, 2008. DOI: 10.1016/j.wear.2008.01.004
Gualco, A., Svoboda, H.G. and Surian, E.S., Study of abrasive wear resistance of Fe-based nanostructured hardfacing, Wear, 2016. DOI: 10.1016/j.wear.2016.04.011
Gualco, A., Marini, C., Svoboda, H. and Surian, E., Wear resistance of Fe-based nanostructured hardfacing, Procedia Materials Science., 8, pp. 934-943, 2015. DOI: 10.1016/j.mspro.2015.04.154
Gou, J., Lu, P., Wang, Y., Liu, S. and Zou, Z., Effect of nano-additives on microstructure, mechanical properties and wear behaviour of Fe-Cr-B hardfacing alloy, Applied Surface Science., 2016. DOI: 10.1016/j.apsusc.2015.11.076
Correa, E.O., Alcântara, N.G., Valeriano, L.C., Barbedo, N.D. and Chaves, R.R., The effect of microstructure on abrasive wear of a Fe-Cr-C-Nb hardfacing alloy deposited by the open arc welding process, Surface Coatings and Technology., 276, pp. 479-484, 2015. DOI: 10.1016/j.surfcoat.2015.06.026
Gualco, A., Svoboda, H.G., Surian, E.S. and de Vedia, L.A., Effect of welding procedure on wear behaviour of a modified martensitic tool steel hardfacing deposit, Materials Design., 31(9), pp. 4165-4173, 2010. DOI: 10.1016/j.matdes.2010.04.026
Welding, B.S.P., Qualify processes and operators according to {ASME} Boiler and Pressure Vessel Code: Section {IX}, Welding Brazing Qualifications., 1, pp. 0-2, 2012.
Dupont, J.N. and Marder, A.R., Thermal efficiency of arc welding processes, Weld. J., (December), pp. 406s-416s, 1995.
ASME. Boiler and pressure vessel code, section V: nondestructive examination. American Society of Mechanical Engineers, 2004.
Melvin-T., A., Reviewed Work: Applied statistics and probability for engineers by Douglas, C. and Montgomery, G.R. , Technometrics, 37(4), pp. 455-457, 1995. DOI: 10.2307/1269738.
Pradeep, G.R.C., Ramesh, A. and Prasad, B.D., Hardfacing of AISI 1020 steel by arc welding in comparison with TIG welding processes., Journal of Science Resources., 5(1), pp. 119-126, 2013. DOI: 10.3329/jsr.v5i1.11899
Lippold, J.C., Welding metallurgy and weldability. Wiley Blackwell, New Jersey, USA, 2014. DOI: 3390/met10010143
T. Materials, ASM - Welding brazing and soldering, Engineering, 6, 1993, 2873 P.
De Sairre-Balsamo, P.S., Scotti, A. and De Mello, J.D.B., Interpretation of hardfacing microstructure using Fe-Cr-C liquidus surface, Revista de Soldadura, 1995.
Kotecki, J.D. and Ogborn, J.S., Abrasion resistance of iron-based hardfacing alloys, Welding Journal., 74(8), pp. S269-S278, 1995.
Atamert, S. and Bhadeshia, H.K.D.H., Microstructure and stability of FeCrC hardfacing alloys, Materials Science and Engineering: A, 130(1). pp. 101-111, 1990.
Mendez, P.F. et al., Welding processes for wear resistant overlays, Journal of Manufacture and Processes., 16(1), pp. 4-25, 2014. DOI: 10.1016/j.jmapro.2013.06.011
Gou, J., Wang, Y., Sun, Z. and Li, X., Study of work function and dry sliding wear behavior of Fe-based hardfacing alloys with and without nano rare earth oxides, Journal of Alloys Compounds, 713C, pp. 255-265, 2017. DOI: 10.1016/j.jallcom.2017.04.172
Zum-Gahr, K.H., Microstructure and wear of materials, vol. 10. Elsevier, 1987.
Olaseinde, O.A., Van Der Merwe, J. and Cornish, L., Characterization and corrosion behaviour of selected duplex stainless steels in acidic and acidic-chloride solution, Advanced Chemical Enginnering Science., 4(January), pp. 89-93, 2014. DOI: 10.4236/aces.2014.41012
Quan, C. and He, Y., Properties of nanocrystalline Cr coatings prepared by cathode plasma electrolytic deposition from trivalent chromium electrolyte, Surface and Coatings Technology., 269(1), pp. 319-323, 2015. DOI: 10.1016/j.surfcoat.2015.02.001
Doǧan, Ö.N. and Hawk, J.A., Effect of carbide orientation on abrasion of high Cr white cast iron, Wear, 189(1-2), pp. 136-142, 1995. DOI: 10.1016/0043-1648(95)06682-9
Rai, D. and Pathak, J.P., Influence of sliding velocity on wear behaviour of different microstructures of Ni-Cr-Mo-V steel, Indian Journal Enginnering Materials Science., 11(2), pp. 113-120, 2004. DOI: 10.1016/0043-1648(95)06682-9
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