Primer acercamiento a la mecánica de contacto en amputados transfemorales unilaterales

Publicado

2017-07-01

A comparative study on slurry erosion behavior of HVOF sprayed coatings

Estudio comparativo del desgaste en mezclas erosivas de recubrimientos depositados por HVOF

Palabras clave:

slurry erosion, nanostructured coatings, HVOF, thermal spray coatings (en)
desgaste en mezcla erosiva, recubrimientos nanoestructurados, HVOF, recubrimientos por proyección térmica (es)

Descargas

Autores/as

In actual work, slurry erosion behavior of three different HVOF sprayed cermet coatings has been studied. The coatings were developed using the powders feedstock having WC fine structured sizes, Cr3C2-NiCr 75-25 and NiCrWSiFeB, latter conventional grain sizes. The slurry erosion testing was performed using a laboratory made pot-type slurry erosion tester, at an impact velocity of 3.61m/s and 9.33 m/s and impact angle of 30 and 90º. The mechanism of material removal in slurry erosion was studied and discussed on microstructural investigations and mechanical properties under the erosion conditions. It was observed that the WC-CoCr cermet coating with fine WC grain exhibits higher erosion resistance as compared to conventional cermet coating due to its improved properties like low porosity, high micro-hardness and fracture toughness.
Este trabajo investiga el comportamiento del desgaste en mezclas erosivas de recubrimientos depositados mediante la técnica de proyección térmica usando el proceso HVOF. Se analizaron tres tipos de recubrimientos, WC-CoCr con estructura de grano fino, Cr3C2-NiCr 75-25 y NiCrWSiFeB, estos últimos con tamaños de grano convencional. Los ensayos de desgaste erosivo se desarrollaron usando un tribómetro de recipiente de mezclas para evaluar la resistencia a la erosión de los recubrimientos a velocidades de impacto de 3.61 m/s y 9.33 m/s y ángulos de impacto de 30 y 90º. El mecanismo de desgaste de los recubrimientos fue estudiado y discutido sobre la base del examen microestructural y la influencia de sus propiedades mecánicas. Se observó que el recubrimiento de carburo de tungsteno exhibe mejor resistencia a la erosión comparada con los recubrimientos de carburo de cromo y metálico debido a sus propiedades de microdureza, tenacidad a la fractura y menor porosidad.

Descargas

Los datos de descargas todavía no están disponibles.

Citas

Lalit T., Arora, N., Jayaganthan, R. Sood, R., An investigation on erosion behavior of HVOF sprayed WC-CoCr coatings. Applied Surface Science 258(3), pp 1225-1234, 2011. DOI: 10.1016/j.apsusc.2011.09.079

Sheng, H. et al., Cavitation erosion behavior and mechanism of HVOF Sprayed WC-10Co-4Cr coating in 3.5 wt% NaCl solution. Trans Indian Inst Met, 68(1), pp. 151-159, 2015. DOI: 10.1007/s12666-014-0440-5

Richert, M.V. et al., Microstructure characterization of chromium carbides coatings deposited by thermal spraying processes. Journal of Achievements in Material and Manufacturing Engineering, 55(1), pp. 108-112, 2012.

Souza, D. and Neville, A., Aspects of microstructure on the synergy and overall material loss of thermal spray coatings in erosion–corrosion environments. Wear, 263, pp. 339-346, 2007. DOI: 10.1016/j.wear.2007.01.071

Wang, L. et al., Effects of Cr on microstructure and hardness of HVOF-sprayed WC-Co coating. Advanced Materials Research, (317-319), pp. 301-306, 2011. DOI: 10.4028/www.scientific.net/AMR.317-319.301. DOI: 10.4028/www.scientific.net/AMR.346.301

Suresh-Babu, P. et al. The influence of erodent hardness on the erosion behavior of detonation sprayed WC-12Co coatings. Wear, 270, pp. 903-913, 2011. DOI: 10.1016/j.wear.2011.02.019

Lopez-Cantera, E. and Mellor, B.G., Fracture toughness and crack morphologies in eroded WC–Co–Cr thermally sprayed coatings. Materials Letters, 37, pp. 201-210, 1998. DOI: 10.1016/S0167-577X(98)00092-5

Xu, J. et al., Erosion–corrosion behavior of nano-particle-reinforced Ni matrix composite alloying layer by duplex surface treatment in aqueous slurry environment. Corrosion Science, 51, pp. 1055-1068, 2009. DOI: 10.1016/j.corsci.2009.02.029

Lima, C.R.C., Libardi,R., Camargo, F., Fals, H.C. and Ferraresi, V.A., Assessment of abrasive wear of nanostructured WC-Co and Fe-Based coatings applied by HP-HVOF, flame, and wire arc spray. Journal of Thermal Spray Technology, 23(7), pp. 1097-1104, 2014. DOI: 10.1007/s11666-014-0101-6

Thakur, L. AND Arora, N., A comparative study on slurry and dry erosion behavior of HVOF sprayed WC–CoCr coatings. Wear, 303, pp. 405-411, 2013. DOI: 10.1016/j.wear.2013.03.028

Allen, C. et al., The wear of ultrafine WC–Co hard metals. Wear, 250, pp. 604-610, 2001. DOI: 10.1016/S0043-1648(01)00667-6

Saha, G.C. et al., Erosion–corrosion resistance of microcrystalline and near-nanocrystalline WC–17Co high velocity oxy-fuel thermal spray coatings. Corrosion Science, 53, pp. 2106–2114, 2011. DOI: 10.1016/j.corsci.2011.02.028

Hawthorne, H.M. et al., Comparison of slurry and dry erosion behaviour of some HVOF thermal sprayed coatings. Wear, (225–229), pp. 825-834, 1999. DOI: 10.1016/S0043-1648(99)00034-4

Lima,C.R.C., Fals, H.C. and Sagaro, R., Developing alternative coatings for repair and restoration of pumps for caustic liquor transportation in the aluminum and nickel industry. Surface & Coatings Technology, 268, pp. 123–133, 2015. DOI: 10.1016/j.surfcoat.2014.08.010

Reyes-Mojena, M., Lima, C.R.C., Sagaro, R. and Fals, H.C., Tribocorrosion behaviour of cemented carbide coatings obtained by high velocity oxygen fuel spraying. Int. J. Surface Science and Engineering, 9(6), pp. 561-573, 2015. DOI: 10.1504/IJSURFSE.2015.072835

Grewal, H.S. et al., Identifying erosion mechanism: A novel approach. Tribol Lett, 51, pp. 1.7. 2013. DOI: 10.1007/s11249-013-0156-4.

Sundararajan, G. et al., Erosion efficiency-a new parameter to characterize the dominant erosion micromechanism. Wear, 140, pp. 369-381, 1990. DOI: 10.1016/0043-1648(90)90096-S

Richert, M. et al., The effect of chemical composition and thermal sprayed method on the chromium and tungsten carbides coatings microstructure. Journal of Surface Engineered Materials and Advanced Technology, 3, pp. 1-5, 2013. DOI: 10.4236/jsemat.2013.31001

Gandhi, B.K., Singh, S.N. and Seshadri, V., A study on the effect of surface orientation on erosion wear of flat specimens moving in a solid–liquid suspension. Wear, 254, pp. 1233-1238, 2003. DOI: 10.1016/S0043-1648(03)00109-1

Hussainova, I., Kubarsepp, J. and Pirso, J., Mechanical properties and features of erosion of cermets. Wear, 250, pp. 818-825, 2001. DOI: 10.1016/S0043-1648(01)00737-2

Hussainova, I., Microstructure and erosive wear in ceramic-based composites. Wear, 258, pp. 357-365, 2005. DOI: 10.1016/j.wear.2004.01.024

Wayne, S.F. and Sampath, S., Structure/ property relationships in sintered and thermally sprayed WC–Co. J. Thermal Spray Technol., 1(4), pp. 307-315, 1992. DOI: 10.1007/BF02647158

Barber, J., Mellor, B.G. and Wood, R.J.K., The development of sub-surface damage during high energy solid particle erosion of a thermally sprayed WC–Co–Cr coating. Wear, 259, pp. 125-134, 2005. DOI: 10.1016/j.wear.2005.02.008

Santana, Y.Y. et al., Influence of mechanical properties of tungsten carbide–cobalt thermal spray coatings on their solid particle erosion behavior. Surface Engineering, 28(4), pp. 237-243, 2012. DOI: 10.1179/1743294411Y.0000000016

Bjordal, M., Bardal, E., Rogne, T. and Eggen, T.G., Erosion and corrosion properties of WC coatings and duplex stainless steel in sand-containing synthetic sea water. Wear, (186-187), pp. 508-514, 1995. DOI: 10.1016/0043-1648(95)07148-2

Licencia

Derechos de autor 2017 DYNA

Creative Commons License

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-SinDerivadas 4.0.

El autor o autores de un artículo aceptado para publicación en cualquiera de las revistas editadas por la facultad de Minas cederán la totalidad de los derechos patrimoniales a la Universidad Nacional de Colombia de manera gratuita, dentro de los cuáles se incluyen: el derecho a editar, publicar, reproducir y distribuir tanto en medios impresos como digitales, además de incluir en artículo en índices internacionales y/o bases de datos, de igual manera, se faculta a la editorial para utilizar las imágenes, tablas y/o cualquier material gráfico presentado en el artículo para el diseño de carátulas o posters de la misma revista.