Abstract
In the present work, an attempt has been made to study the slurry erosion properties and operating erosive wear mechanisms of Co-based Stellite 6 and Ni-based Colmonoy 88 coatings, and also to list the conditions at which maximum and minimum erosion rates occur. Laser surface alloying (LSA) has been done on 13Cr-4Ni steels with commercial Co-based Stellite 6 and Ni-based Colmonoy 88 powders. Slurry erosion tests have been conducted on LSA-modified steels for a constant slurry velocity of 12 m/s and for a fixed slurry concentration of 10 kg/m3 of irregular, sharp-edged SiO2 particles with average sizes of 375 and 100 μm and at impingement angles of 30, 45, 60, and 90 deg. A mixed (neither ductile nor brittle) mode of erosion behavior for Stellite 6 coatings and a brittle mode of erosion behavior for Colmonoy 88 coatings were observed when these materials were impacted with particles with an average size of 375 μm, whereas only a brittle mode of erosion was observed for both Stellite 6 and Colmonoy 88 coatings when impacted with particles with an average size of 100 μm. Mainly, chip formation, chip fracture, microcutting, plowing, and crater lip and platelet formation were observed for Stellite 6 coatings and progressive fracture of carbides, carbide pullout and carbide/boride intact were observed for the case of Colmonoy 88 coatings.
Similar content being viewed by others
References
S.K. Singal and R. Singh: Int. Himalayan Small Hydropower Summit, October 12–13, 2006, pp. 200–07.
G.W. Stachowiak and A.W. Batchelor: Engineering Tribology, Elsevier, Amsterdam, 1993, p. 511.
M. Divakar, V.K. Agarwal, and S.N. Singh: Wear, 2005, vol. 259, pp. 110–17.
T.R. Tucker, A.H. Clauer, I.G. Wright, and J.T. Stropki: Thin Solid Films, 1984, vol. 118, pp. 73–84.
E. Yarrapareddy, S. Zekovic, S. Hamid, and R. Kovacevic: Proc. I. Mech. E.: Part B: J. Eng. Manuf., 2006, vol. 220, pp. 1923–36.
R. Chattopadhyay: Wear, 1993, vols. 162–164, pp. 1040–44.
M. Riabkina-Fishman and J. Zahavi: Appl. Surf. Sci., 1996, vol. 106, pp. 263–67.
R. Vilar: Mater. Sci. Forum, 1999, vol. 301, pp. 229–52.
G.L. Goswami, D. Kumar, A.K. Grover, A.L. Pappachan, and M.K. Totlani: Surf. Eng., 1999, vol. 15 (1), p. 65.
G.L. Fillion: Weld. J., April 1994, pp. 33–37.
ASTM G 73, “Standard Practice for Liquid Impingement Erosion Testing,” Annual Book of ASTM Standards, ASTM, West Conshohocken, PA, 2004, vol. 03.02, pp. 1–18.
R.J.K. Wood: Mater. Des., 1999, vol. 20, pp. 179–91.
B.S. Mann: Wear, 1998, vol. 217, pp. 56–61.
H. Kashani, A. Amadeh, and H.M. Ghasemi: Wear, 2007, vol. 262, pp. 800–06.
Q. Ming, L.C. Lim, and Z.D. Chen: Surf. Coat. Technol., 1998, vol. 106, pp. 174–82.
T. Manisekaran, M. Kamaraj, S.M. Shariff, and S.V. Joshi: J. Mater. Eng. Perform., 2007, vol. 16 (5), pp. 567–72.
H.McI. Clark and R.B. Hartwich: Wear, 2001, vol. 248, pp. 147–61.
S. Turenne, Y. Chatigny, D. Simard, S. Caron, and J. Masounave: Wear, 1990, vol. 141, pp. 147–58.
W.H. Jiang and R. Kovacevic: Surf. Eng., 2004, vol. 20, pp. 464–68.
J.G.A. Bitter: Wear, 1963, vol. 6, pp. 5–21.
J.G.A. Bitter: Wear, 1963, vol. 6, pp. 169–90.
A. Magnee: Wear, 1995, vols. 181–183, pp. 500–10.
B.S. Mann and V. Arya: Wear, 2002, vol. 253, pp. 650–61.
I.M. Hutchings: Powder Technol., 1993, vol. 76, pp. 3–13.
Acknowledgments
Financial support for this work from the Department of Science and Technology (DST), the Government of India (New Delhi, India), is gratefully acknowledged. The authors are thankful to Mr. Shyam Rao, Technician, CLPM, ARCI (Hyderabad, India), for his help during the LSA work. Thanks are also expressed to Mr. T. Raghavaiah, Senior Technical Assistant, and Ms. S. Shanti, Lab Superintendent, Department of MME, IITM (Chennai, India), for the SEM analysis of eroded surfaces.
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted August 25, 2008.
Rights and permissions
About this article
Cite this article
Shivamurthy, R.C., Kamaraj, M., Nagarajan, R. et al. Slurry Erosion Characteristics and Erosive Wear Mechanisms of Co-Based and Ni-Based Coatings Formed by Laser Surface Alloying. Metall Mater Trans A 41, 470–486 (2010). https://doi.org/10.1007/s11661-009-0092-y
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-009-0092-y