Corrosion Behaviour of Heat Treated Rolled Medium Carbon Steel in Marine Environment
Affiliation(s)
Ajaokuta Steel Company Limited, Ajaokuta Steel City, Kogi State, Nigeria. Metallurgical and Materials Engineering Department, Federal University of Technology,Akure, Ondo State, Nigeria..
Ajaokuta Steel Company Limited, Ajaokuta Steel City, Kogi State, Nigeria. Metallurgical and Materials Engineering Department, Federal University of Technology,Akure, Ondo State, Nigeria..
ABSTRACT
Investigation were carried out to study the corrosion behaviour of heat treated rolled medium carbon steel and as-rolled medium carbon steel in sodium chloride medium. The as-rolled medium carbon steel was heated to a temperature of 830℃ to completely austenize it and water quenched; it was reheated to the ferrite-austenite dual phase region at a temperature of 745℃ below the effective Ac3 point. The steel was then rapidly quenched in water and tempered at a temperature of 480℃. The corrosion behaviour of the steel in marine medium (NaCl) was studied by weight loss measurement. The weight loss is between 0.02g-0.11g for the as-rolled steel and 0.01g – 0.013g for the heat treated steel. The results obtained showed that the as-rolled medium carbon steel is more susceptible to corrosion than the heat treated rolled medium carbon steel.
Investigation were carried out to study the corrosion behaviour of heat treated rolled medium carbon steel and as-rolled medium carbon steel in sodium chloride medium. The as-rolled medium carbon steel was heated to a temperature of 830℃ to completely austenize it and water quenched; it was reheated to the ferrite-austenite dual phase region at a temperature of 745℃ below the effective Ac3 point. The steel was then rapidly quenched in water and tempered at a temperature of 480℃. The corrosion behaviour of the steel in marine medium (NaCl) was studied by weight loss measurement. The weight loss is between 0.02g-0.11g for the as-rolled steel and 0.01g – 0.013g for the heat treated steel. The results obtained showed that the as-rolled medium carbon steel is more susceptible to corrosion than the heat treated rolled medium carbon steel.
Cite this paper
O. Daramola, B. Adewuyi and I. Oladele, "Corrosion Behaviour of Heat Treated Rolled Medium Carbon Steel in Marine Environment," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 10, 2011, pp. 888-903. doi: 10.4236/jmmce.2011.1010069.
O. Daramola, B. Adewuyi and I. Oladele, "Corrosion Behaviour of Heat Treated Rolled Medium Carbon Steel in Marine Environment," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 10, 2011, pp. 888-903. doi: 10.4236/jmmce.2011.1010069.
References
[1] Scully, J.C. (1990). The Fundamental of Corrosion. Maxwell Macmillan Perganman Publishing Corporation, Oxford. [2] Mamoru, O. Yukito, T; Hitoshi, K. and Yuji, F. (1990). Development of New Steel Plates for building Structural use, Nippon Steel Technical Report, No44 pp. 8 – 15. [3] Rajan, T.V; Sharma, C.P. and Sharma, A. (1989). Heat Treatment Principles and Techniques, Prentice Hall of India Private Limited, New Delhi. pp. 36 – 58. [4] O.O. Daramola, B.O. Adewuyi and I.O. Oladele (2010), Effects of Heat Treatment on the Mechanical Properties of Rolled Medium Carbon Steel, Journal of Minerals and Materials Characterization and Engineering; Vol. 9, No. 8, pp. 693 – 708. [5] Thomas, G., Ahn, J.H. and Kin, N.J. (1986) Controlled Rolling Process for Dual-Phase Steel and Shapes. The Metal Society, London, Book 285, pp. 121 – 124. [6] Gorni, A.A. (2004). Steel Forming and Heat-Treating Hand Book; Vol. 2, Saova Center, Brazil, p. 4. [7] Faleke, E.O. (1987). Metallurgical Investigation of a Corroded Peugeot Car Body. Unpublished Thesis, Federal University of Technology, Akure [8] Baboian and Turcotte, (1985). Corrosion Sceince. Elservier Science Limited, Great Britain. Volume 25, No 13, pp. 958 – 1009. [9] Davies, D.J. and Harold, W. (1971). Practical Microcopical Metallography, Chapman and Hall Limited, London. [10] Davis, D.J. and Oelman, L.A. (1983). The Structure, Properties, and Heat Treatment of Metals, London, Pitman Books, pp. 44 – 52. [11] Smith, W.F. and Hashemi, J. (2006). Foundations of Materials Science and Engineering, 4th Edition; Mcgraws – Hill Book. pp. 28 – 36. [12] Dieter, G.E (2000). Mechanical Metallurgy, 5th Edition. Singapore, Mcgraw – Hill Book, pp. 186 - 195
[1] Scully, J.C. (1990). The Fundamental of Corrosion. Maxwell Macmillan Perganman Publishing Corporation, Oxford. [2] Mamoru, O. Yukito, T; Hitoshi, K. and Yuji, F. (1990). Development of New Steel Plates for building Structural use, Nippon Steel Technical Report, No44 pp. 8 – 15. [3] Rajan, T.V; Sharma, C.P. and Sharma, A. (1989). Heat Treatment Principles and Techniques, Prentice Hall of India Private Limited, New Delhi. pp. 36 – 58. [4] O.O. Daramola, B.O. Adewuyi and I.O. Oladele (2010), Effects of Heat Treatment on the Mechanical Properties of Rolled Medium Carbon Steel, Journal of Minerals and Materials Characterization and Engineering; Vol. 9, No. 8, pp. 693 – 708. [5] Thomas, G., Ahn, J.H. and Kin, N.J. (1986) Controlled Rolling Process for Dual-Phase Steel and Shapes. The Metal Society, London, Book 285, pp. 121 – 124. [6] Gorni, A.A. (2004). Steel Forming and Heat-Treating Hand Book; Vol. 2, Saova Center, Brazil, p. 4. [7] Faleke, E.O. (1987). Metallurgical Investigation of a Corroded Peugeot Car Body. Unpublished Thesis, Federal University of Technology, Akure [8] Baboian and Turcotte, (1985). Corrosion Sceince. Elservier Science Limited, Great Britain. Volume 25, No 13, pp. 958 – 1009. [9] Davies, D.J. and Harold, W. (1971). Practical Microcopical Metallography, Chapman and Hall Limited, London. [10] Davis, D.J. and Oelman, L.A. (1983). The Structure, Properties, and Heat Treatment of Metals, London, Pitman Books, pp. 44 – 52. [11] Smith, W.F. and Hashemi, J. (2006). Foundations of Materials Science and Engineering, 4th Edition; Mcgraws – Hill Book. pp. 28 – 36. [12] Dieter, G.E (2000). Mechanical Metallurgy, 5th Edition. Singapore, Mcgraw – Hill Book, pp. 186 - 195