Abstract
The effects of chromium on the corrosion and the electrochemical behaviors of ultra high strength steels were studied by the salt spray test and electrochemical methods. The results show that ultra high strength steels remain martensite structures and have anodic dissolution characteristic with an increase of chromium content. There is no typical passive region on the polarization curves of an ultra high strength stainless steel, AerMet 100 steel, and 300M steel. However, chromium improves the corrosion resistance of the stainless steel remarkably. It has the slowest corrosion rate in the salt spray test, one order of magnitude less than that of AerMet 100 and 300M steels. With the increase of chromium content, the polarization resistance becomes larger, the corrosion potential shifts towards the positive direction with a value of 545 mV, and the corrosion current density decreases in electrochemical measures in 3.5wt% NaCl solutions. Because of the higher content of chromium, the ultra high strength stainless steel has a better corrosion resistance than AerMet 100 and 300M steels.
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References
D. Figueroa and M.J. Robinson, The effects of sacrificial coatings on hydrogen embrittlement and re-embrittlement of ultra high strength steels, Corros. Sci., 50(2008), No.4, p.1066.
B.G. Pound, Hydrogen trapping in high-strength steels, Acta Mater., 46(1998), No.16, p.5733.
R. Goetz and D. Landolt, The influence of chromium content and potential on the surface composition of Fe-Cr-Mo alloys studied by AES, Electrochim. Acta, 29(1984), No.5, p.667.
K.H. Lo, C.H. Shek, and J.K.L. Lai, Recent developments in stainless steels, Mater. Sci. Eng. R, 65(2009), p.39.
L.C. Chang and H.K.D.H. Bhadeshia, Carbon content of austenite in isothermally transformed 300M steel, Mater. Sci. Eng. A, 184(1994), No.1, p.L17.
L.C. Chhabildas, T.F. Thornhill, W.D. Reinhart, et al., Fracture resistant properties of AerMet steels, Int. J. Impact Eng., 26(2001), p.77.
C. Lin, X.G. Li, and C.F. Dong, Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl−, J. Univ. Sci. Technol. Beijing, 14(2007), No.6, p.517.
C.O.A. Olsson and D. Landolt, Passive films on stainless steels, chemistry, structure and growth, Electrochim. Acta, 48(2003), No.9, p.1093.
X.L. Zhang, Z.H. Jiang, Z.P. Yao, et al., Effects of scan rate on the potentiodynamic polarization curve obtained to determine the Tafel slopes and corrosion current density, Corros. Sci., 51(2009), No.3, p.581.
H. Ma, S.H. Chen, B.S. Yin, et al., Impedance spectroscopic study of corrosion inhibition of copper by surfactants in the acidic solutions, Corros. Sci., 45(2003), No.5, p.867.
C.H. Hsu and F. Mansfeld, Technical note: concerning the conversion of the constant phase element parameter Y 0 into a capacitance, Corrosion, 57(2001), No.9, p.747.
K. Hashimoto, K. Asami, A. Kawashima, et al., The role of corrosion-resistant alloying elements in passivity, Corros. Sci., 49(2007), No.1, p.42.
M.W. Tan, E. Akiyama, A. Kawashima, et al., The effect of air exposure on the corrosion behavior of amorphous Fe-8Cr-Mo-13P-7C alloys in 1 M HCl, Corros. Sci., 37(1995), No.8, p.1289.
P.Y. Park, E. Akiyama, A. Kawashima, et al., The corrosion behavior of sputter deposited Mo-Ta alloys in 12 M HCl solution, Corros. Sci., 38(1996), No.3, p.397.
P.Y. Park, E. Akiyama, A. Kawashima, et al., The corrosion behavior of sputter deposited Cr-Mo alloys in 12 M HCl solution, Corros. Sci., 37(1995), No.11, p.1843.
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This work was financially supported by the National Science and Technology Infrastructure Platforms Construction Projects of China (Grant No.2005DKA10400) and the National Science Foundation of China (No.50871021).
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Zhong, Jy., Sun, M., Liu, Db. et al. Effects of chromium on the corrosion and electrochemical behaviors of ultra high strength steels. Int J Miner Metall Mater 17, 282–289 (2010). https://doi.org/10.1007/s12613-010-0306-8
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DOI: https://doi.org/10.1007/s12613-010-0306-8