Corrosion study on low alloy high phosphorus steel
คำสำคัญ:
Weathering steel, High phosphorus steel, Tafel polarization, Electrochemical impedance spectroscopy, Cyclic salt spray testบทคัดย่อ
The effect of P on corrosion behaviour of low alloy steels exposed for one month cyclic wet/dry salt spray was investigated and compared with low carbon steel. Electrochemical Impedance Spectroscopy (EIS) results revealed that the rust resistance (Rrust) increased with the number of salt spray test cycles. The higher phosphorus content steel (G12) exhibited higher rust resistance (Rrust) than that of low phosphorus content steels (SCR & G11), while similar corrosion rate was noticed from the Tafel extrapolation study in 3.5% NaCl solution for all the test samples. All steels revealed ferrite pearlite microstructure. The larger ferrite grain of G12 steel containing highest phosphorus content (0.42 wt. % P) is attributed to the effect of phosphorus.
Downloads
เอกสารอ้างอิง
Townsend, H.E., Simpson, T.C. and Johnson, G. L. (1994). Structure of rust on weathering steel in rural and industrial environments. Corrosion. 50(7) : 546-554.
Stratmann, M. and Streckel, H. (1990). On the atmospheric corrosion of metals which are covered with thin electrolyte layers-II. Experimental results. Corros. Sci. 30(6-7) : 697-714.
Zhang, C., Cai, D., Liao, B., Zhao, T. and Fan, Y. (1990). A study on the dual-phase treatment of weathering steel 09CuPCrNi. Mater. Lett. 58(9) : 1524-1529.
Hao, L., Zhang, S., Dong, J. and Ke, W. (2012). A study of the evolution of rust on Mo– Cu-bearing fire-resistant steel submitted to simulated atmospheric corrosion. Corros. Sci. 54 : 244-250.
De la Fuente, D., Díaz, I., Simancas, J., Chico, B. and Morcillo, M. (2011). Long-term atmospheric corrosion of mild steel. Corros. Sci. 53(2) : 604-617.
Wang, Z., Liu, J., Wu, L., Han, R. and Sun, Y. (2013). Study of the corrosion behavior of weathering steels in atmospheric environments. Corros. Sci. 67 : 1-10.
Okada, H., Hosoi, Y. and Naito, H. (1970). Electrochemical reduction of thick rust layers formedon steel surfaces. Corrosion. 26 : 429-430.
Meybaum, B. R. and Ayllon, E. (1980). Characterization of Atmospheric corrosion products on weathering steels. Corrosion. 36(7) : 345-347.
Suzuki, I., Hisamatsu, Y. and Masuko, N. (1980). Nature of Atmospheric rust on iron. J. Electrochem. Soc. 127(10) : 2210-2215.
Murata, T. (2000). Weathering Steel in Uhlig’s Corrosion Handbook. 3rd ed. New York : John Willey & Sons.
Balasubramaniam, R. (2000). On the Corrosion Resistance of the Delhi Iron Pillar. Corros. Sci. 42(12) : 2103-2129.
Balasubramaniam, R. and Ramesh Kumar, A.V. (2000). Characterization of Delhi iron pillar rust by X-ray diffraction, Fourier infrared spectroscopy and Mössbauer spectroscopy. Corros. Sci. 42(12) : 2085- 2101.
Zhou, G.P., Liu, Z.Y., Qiu, Y.Q. and Wang, G.D. (2009). The improvement of weathering resistance by increasing P contents in cast strips of low carbon steels. Materials and Design. 30(10) : 4342-4347.
Kihira, H., Ito, S. and Murata, T. (1990). The behavior of phosphorous during passivation of weathering steel by protective patina formation. Corros. Sci. 31 : 383-388.
US-CORTEN STEEL : Catalogue of US Steel (1977).
Ijsseling, F.P. (1986). Application of Electrochemical methods of corrosion rate determination to system involving corrosion product layers. Br. Corros. J. 21 : 95-101.
Tait, W.S. (1994). An Introduction to Electrochemical corrosion testing for practicing engineers and scientists. Wisconsin : Pair O Docs.
ASTM B117-03. (2006). Standard Practice for Operating Salt Spray (Fog) Apparatus. West Conshohochen. PA 19428-2959.
Flitt, H.J. and Schweinsberg, D.P. (2005). Evaluation of corrosion rate from polarisation curves not exhibiting a Tafel region. Corros. Sci. 47(12) : 3034-3052.
Flitt, H.J. and Schweinsberg, D.P. (2005). A guide to polarisation curve interpretation : deconstruction of experimental curves typical of the Fe/H2O/H+/O2 corrosion system. Corros. Sci. 47(9) : 2125-2156.
Pourbaix, M. (1966). Atlas of electrochemical equilibria in aqueous solutions, 1st ed. New York : Pergamon.
Sahoo, G. and Balasubramaniam, R. (2008). Corrosion of Phosphoric Irons in Acidic Environments. J. ASTM Int. 5(5) : 1-7.
McCafferty, E. (2005). Validation of Corrosion Rates Measured By the Tafel Extrapolation Method. Corros. Sci. 47(12) : 3202-3215.
Dexter, S.C. (1979). Handbook of Oceanographic Engineering Materials. New York : John Wiley and Sons.
Nishikata, A., Yamashita, Y., Katayama, H., Tsuru, T., Usami, A., Tanabe, K. and Mabuchi, H. (1995). An electrochemical impedance study on atmospheric corrosion of steels in a cyclic wet-dry condition. Corros. Sci. 37(12) : 2059-2069.
ดาวน์โหลด
เผยแพร่แล้ว
วิธีการอ้างอิง
ฉบับ
บท
การอนุญาต
ลิขสิทธิ์ (c) 2014 วารสารโลหะ, วัสดุ และแร่
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
