The Effectiveness Evaluation of Manganese on The Anti-Corrosion Performance of Low alloy Steel Using Thermodynamic Analytical Approach

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Kanok-on Rodjanakid
Anusorn Phongprapa
Singha Manokruea
Sumrauy Sontong
Sonthaya Khamdech
Thee Chowwannonthapunya


The effectiveness evaluation of manganese (Mn) on the corrosion resistant performance of low alloy steel was performed using thermodynamic methods. The possible chemical and electrochemical reactions as well as the thermodynamic data such as standard Gibbs free energy of ions or compounds were first assessed and well prepared. Van't Hoff equation and Nernst’s equation were then applied to compute the electrochemically significant equations, which were then used to produce potential-pH diagrams of iron and manganese. Both diagrams were later merged to construct the potential-pH diagram of low alloy steel containing manganese. The results showed that MnFe2O4 can be thermodynamically formed in the high pH range and the region where MnFe2O4 and Fe3O4 overlap was obviously found. This indicates that MnFe2O4 and Fe3O4 coexist in the rust layers on the steel substrate and manganese plays a role in enhancing the corrosion resistance of low alloy steel by improving the dense of Fe3O4 , particularly in the high pH range. The effectiveness of manganese analyzed in this paper may be useful to the development of the low-cost weathering steel production in Thailand.

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Rodjanakid, K.- on ., Phongprapa, A. ., Manokruea, S. ., Sontong, S. ., Khamdech, S. ., & Chowwannonthapunya, T. (2024). The Effectiveness Evaluation of Manganese on The Anti-Corrosion Performance of Low alloy Steel Using Thermodynamic Analytical Approach . Journal of Advanced Development in Engineering and Science, 14(39), 17–30. Retrieved from
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Fan, Y., et al. (2020). Corrosion Behaviors of Carbon Steel and Ni-Advanced Weathering Steel Exposed to Tropical Marine Atmosphere. Journal of Materials Engineering and Performance, 29(10), 6417-6426.

Fan, Y., et al. (2020). Evolution of rust layers on carbon steel and weathering steel in high humidity and heat marine atmospheric corrosion. Journal of Materials Science & Technology, 39, 190-199.

Chowwanonthapunya, T. (2022). Fundamentals of Corrosion Engineering. Chiangmai: Chiang Mai University Press. (in Thai)

Chowwanonthapunya, T., et al. ( 2015). Review of Corrosion of Carbon Steel in CO2 – Containing Environment of the Oil and Gas Industry: Mechanism Understanding to Prediction Model. Pathumwan Academic Journal, 5(14), 31-41.

Zhu, M., et al. (2017). Preparation of Superhydrophoblic Film on Ti Substrate and its Anticorrosion Property. Materials, 10(6), 628.

Diaz, I., et al. (2013). Atmospheric corrosion of Ni-advanced weathering steels in marine atmospheres of moderate salinity. Corrosion Science, 76, 348–360.

Cheng, X., et al. (2017). Optimizing the nickel content in weathering steels to enhance their corrosion resistance in acidic atmospheres. Corrosion Science, 115, 135–142.

Jia, J., et al. (2020). Ni-advanced weathering steels in Maldives for two years: Corrosion results of tropical marine field test. Construction and Building Material, 245, 118463.

Chowwanonthapunya, T., (2017). Corrosion study of low alloy steel in a simulated coastal atmosphere. Engineering Journal of Research and Development, 28 (3), 27-34. (in Thai)

Peeratatsuwan, C., et al. (2022). A Thermodynamic Investigation on Corrosion of Cu-bearing Steel in Aqueous Solutions. Pathumwan Academic Journal, 12(33), 16 -26.

Ke, W., et al. (2010). Study on the rusting evolution and the performance of resisting to atmospheric corrosion for Mn–Cu steel. Acta Metallurgica Sinica, 46,1365–1378.

Yamashita, M., et al. (1994). The long term growth of the protective rust later formed on weathering steel by atmospheric corrosion during a quarter of a century. Corrosion Science, 2(2), 283-299.

Beverskog, B. & Puigdomenech, I. (1996). Revised Pourbaix diagrams for iron at 25 –300 oC. Corrosion Science, 38, 2121–2135.

Marcus, Y. (1997). Ion properties, New York: Marcel Dekker, Inc.

Pourbaix, M. (1973). Lectures on Electrochemical Corrosion, New York: Plenum Press.

Pourbaix, M. (1990). Thermodynamics and Corrosion. Corrosion Science, 30(10), 963-988.

Misawa, T. (1973). The Thermodynamic Consideration For Fe-H2O System at 25 oC. Corrosion Science, 13, 659-676.

Hao, L., et al. (2012). Rusting evolution of MnCuP weathering steel submitted to simulated industrial atmospheric corrosion. Metallurgical and Materials Transactions A, 43A, 1724–1730.

Jia, J., et al. (2021). A study for corrosion behavior of a new-type weathering steel used in harsh marine environment, Construction and Building Materials, 259(30), 119760

Liu, W., et al. (2022). Synergistic effect of Mn, Cu, P with Cr content on the corrosion behavior of weathering steel as a train under the simulated industrial amosphere. Journal of Alloys and Compounds, 834, 155095.