Asian Journal of Engineering and Applied Technology (AJEAT)
Finite Element Modelling of Erosion Parameters in Boiler ComponentsAuthor : Prashant Kumar Singh, Amit Ranjan Hota and S.B.Mishra
Volume 7 No.2 Special Issue:November 2018 pp 12-16
Erosion wear of boiler components in power plant industry is a critical factor in predicting the life and durability of such components. In the aggressive environment, failure of components is accelerated by erosion wear. Various erosion resistant coatings have been developed in the recent past to improve the life of such components subjected to erosive wear. Among the various types of coatings, the development of WC-Co ceramic coatings for the protection against erosion wear require understanding of their complex failure mechanisms occurring during solid particle impact. Many experimental works have been done to find the effect of different parameters on the erosion wear of the WC-Co coatings however such data is insufficient as newer composition and processing methods are being developed every day. Further, experimentation requires a lot of human effort, machine hours, sophisticated equipment and is time consuming. The simulation of the erosion process parameters in available finite element modelling software enables the prediction of erosion behavior of different combination of materials. The factors affecting the erosion wear of WC-Co coating such as the particle size, the velocity of impacting particles, the coating thickness, angle of impact and the coating composition are considers in this work. The results for erosion wear are obtained and analysed using the Hashish model for erosion wear.
WC-Co Coating, Erosion wear, Finite Element Modelling, Boiler Component
 E. Akca and A.Gürsel, “A review on superalloys and IN718 nickel-based INCONEL superalloy,”Periodicals of Engineering and Natural Sciences.Vol. 26, No. 3, pp. 1, 2015.
 Q.Yang, L. Zhao and P.Patnaik, “Solid particle erosion resistant hard coatings for gas turbine engine applications,”Progress in Aircraft Icing and Aircraft erosion research-Chapter, Vol. 5,pp. 83-134, 2017.
 R.Wei and D.W.Gandy, “Nanotechnology coatings for erosion protection of turbine components,”Journal of Engineering for Gas Turbines and Power.Vol. 132, No. 8, pp. 082104, 2010.
 A.P.Anaraki, J.Kadkhodapour and N.K.Farahani, “Study of solid particle impact effects and coating thickness on the erosion damage. Proceedings of the Institution of Mechanical Engineers,”Part C: Journal of Mechanical Engineering Science.Vol. 228, No. 16,pp. 2861-2870, 2014.
 S.Hassani, M.Bielawski, W.Beres, L.Martinu, M.Balazinski and JE.Klemberg-Sapieha, “Predictive tools for the design of erosion resistant coatings,”Surface and Coatings Technology, Vol. 25, No. 203(3-4), pp. 204-210, 2008.
 K.Shimizu, T.Noguchi, H.Seitoh, M.Okada and Y.Matsubara, “FEM analysis of erosive wear,” Wear,Vol. 250, No. 1-12,pp. 779-784, 2001.
 G.E. Dieter and D.J.Bacon, Mechanical metallurgy. New York: McGraw-hill; 1986.
 M.S.ElTobgy, E. Ng and M.A.Elbestawi, “Finite element modeling of erosive wear,”International Journal of Machine Tools and Manufacture,Vol. 45, No. 11,pp. 1337-1346,2005.
 M.S.Mahdipoor,F.Tarasi, C.Moreau, A.Dolatabadi and M. Medraj, “HVOF sprayed coatings of nano-agglomerated tungsten-carbide/cobalt powders for water droplet erosion application”, Wear, Vol. 330,pp. 338-347, 2015.
 Y.Li, Y.Lian, J.Cao and L.Li, “Solid particle erosion behavior of HVOF/HVAF sprayed WC-Co-Cr coatings”, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, Vol. 230, No. 6,pp. 634-643, 2016.
 B.A. Lindsley and A.R.Marder, “The effect of velocity on the solid particle erosion rate of alloys,” Wear,Vol. 225,pp. 510-516, 1999.
 S.G. Sapate and A.V.RamaRao, “Effect of erodent particle hardness on velocity exponent in erosion of steels and cast irons,” Materials and Manufacturing Processes, Vol. 18, No. 5, pp. 783-802, 2003.
 R.O. Scattergood and J.L.Routbort, “Velocity Exponent in Solid‐Particle Erosion of Silicon,” Journal of the American Ceramic Society, Vol. 66, No. 10, pp.184-186, 1983.
 M.Bielawski and W.Beres, “Effect of coating architecture on impact stress distribution in particulate erosion condition,” InJournal of Physics: Conference Series,Vol. 100, No. 8, 2008.
 D.B.Marshall, A.G.Evans, M.E.Gulden,J.L.Routbort and R.O.Scattergood, “Particle size distribution effects on the solid particle erosion of brittle materials,” Wear, Vol. 71, No. 3,pp. 363-73, 1981.
 V.B.Nguyen, Q.B.Nguyen, Y.W.Zhang, C.Y. Lim, and BC.Khoo, “Effect of particle size on erosion characteristics,” Wear, 348: p. 126-37, 2016.
 S.K.Das, K.M.Godiwalla, S.P.Mehrotra, K.K.Sastry and P.K.Dey, “Analytical model for erosion behaviour of impacted fly-ash particles on coal-fired boiler components,” Sadhana, Vol. 31, No. 5, pp. 583-595, 2006.
 D.Griffin, A.Daadbin and S.Datta, “The development of a three-dimensional finite element model for solid particle erosion on an alumina scale/MA956 substrate”, Wear, Vol. 256, No. 9-10,pp. 900-906, 2004.
 Y.I.Oka, H.Ohnogi, T.Hosokawa and M.Matsumura, “The impact angle dependence of erosion damage caused by solid particle impact,” Wear, Vol. 203,pp. 573-579, 1997.
 Y.Yıldıran,E.Avcu,A.E.Şahin,S. Fidan, H. Yetiştiren and T.Sınmazçelik, “Effect of particle impact angle, erodent particle size and acceleration pressure on the solid particle erosion behavior of 3003 aluminum alloy,” Acta Physica Polonica A,Vol. 125, No. 2, pp. 523-525, 2014.