Abstract
Cast irons are important engineering materials which possess a wide range of attractive properties. Their properties are significantly dependent on the microstructure of the cast and cast iron components. A way of controlling the microstructure of cast iron is through the control of cooling rates during solidification. To control cooling rate, the heat storage capacity (HSC) of the mould is important. This paper presents the report of a study on the characteristic effects of graphite flake sizes on some mechanical properties of grey cast iron. Six mould materials with HSCs ranging from 1.52 to 2.16 kJ m−2 K−1 s−1/2 were prepared and used to cast some grey cast iron samples whose microstructures were observed by optical microscopy. Mechanical properties of the grey iron were evaluated. The results show that the properties increased with the HSC of the mould. In addition, the microstructures show a dependence on HSC of the mould.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Adedayo, A.V.: Effects of addition of iron filings to green moulding sand on the microstructure of grey cast iron. J. Braz. Soc. Mech. Sci. Eng. XXXII(2), 171–175 (2010)
Rajput, R.K.: Engineering materials and metallurgy, 1st edn. pp. 13, 28–31, 101. S. Chand & Co., New Delhi (2006)
DeGarmo, E.P.; Black, J.T.; Kosher, R.A.: Material and processes in manufacturing, 9th edn. pp. 60–100, 375–408, 1100–1123. Wiley, New York (2003)
Heine, R.W.; Loper, C.R.; Rosenthal, P.C.: Principles of metal castings, 26th reprint, TMH edn. p. 86. New York (2003)
Moffatt, W.G.; Pearsall, G.W.; Wulff, J.: The structure and properties of materials, structure, vol. 1, pp. 134, 195. Wiley, Brisbane (1964)
Rajan, T.V.; Sharma, C.P.; Sharma, A.: Heat treatment principles and techniques, pp. 11–14, 289–331. Prentice-Hall of India, Private Ltd, New Delhi (1988)
Adedayo A.V., Ibitoye S.A., Oyetoyan O.A.: Annealing heat treatment effects on steel welds. J. Miner. Mater. Charact. Eng. 9(6), 601–611 (2010)
Imaev, R.M.; Imaev, V.M.; Khismatullin, T.G.: Refinning of the microstructure of cast intermetallic alloy Ti-43% Al-X (Nb, Mo, B) with the help of heat treatment, Metallovedenie I Termicheskaya Obrabotka Metallov, No. 2, pp. 38–41 (2006)
Adedayo A.V.: Effects of carbon content on steel welds. J. Res. Technol. Eng. Manag. 2(1), 131–135 (2009a)
Adedayo, A.V.: Effects of iron filings on the properties of green moulding sand. In: Proceedings of 2nd national conference of institute of technology, vol. 2, issue no. 1, pp. 45–49. Kwara State Polytechnic, Ilorin (2009b)
Higgins, R.A.: Engineering metallurgy: applied physical metallurgy, 6th edn. pp. 355, 356. Viva books, New Delhi (2004)
Flemings, M.C.: Solidification processing; materials science and engineering series. p. 184. McGraw-Hill, New York (1974)
Brophy, J.H.; Rose, R.M.; Wulff, J.: The structure and properties of materials, thermodynamics, vol. 2, pp. 113–114, 188–189. Wiley, Brisbane (1964)
DeGarmo, E.P.; Black, J.T.; Kosher, R.A.: Material and processes in manufacturing, 8th edn. pp. 90–93, 345–415, 1114. Wiley, New York (1999)
Callister, W.J.: Materials science and engineering, an introduction, pp. 717–731. Wiley, NY (1985)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Adedayo, A.V. Characterization of Graphite Flakes in Grey Iron Microstructure. Arab J Sci Eng 37, 1645–1652 (2012). https://doi.org/10.1007/s13369-012-0265-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13369-012-0265-7