Publisher : The Korean Institute of Surface Engineering
DOI : 10.5695/JKISE.2016.49.1.26
Title & Authors
Electrochemical Characteristics under Cavitation-Erosion Environment of STS 304 and Hot-Dip Aluminized STS 304 in Sea Water Solution Chong, Sang-Ok; Kim, Seong-Jong;
In this paper, the characteristics of a cavitation-erosion damage behavior on the STS 304 and hot-dip aluminized STS 304 under cavitation environment in sea water solution was investigated. The electrochemical experiments were carried out by potential measurement, anodic/cathodic polarization test, Tafel analysis, and also galvanostatic experiment in current density variables for the samples. The apparatus of cavitation-electrochemical experiment was manufactured in compliance with modified ASTM G-32 standard, with the conditions of sea water temperature of and the measurement, amplitude of . The damage behavior was analyzed by an observation of surface mophologies and a measurement of damage depth by a scanning electron microscope(SEM) and a 3D microscope, respectively, after electrochemical test. After polarization experiment under cavitation environment, much higher damage depths for the hot-dip aluminized STS 304 were observed comparing to the untreated STS 304. In addition, higher corrosion current density in hot-dip aluminized STS 304 presented than that of untreated STS 304 as a result of Tafel analysis.
Cavitation;Hot-dip aluminized;Stainless steel;Sea water;Corrosion current density;
W. J. Cheng, C. J. Wang, Effect of Chromium on the Formation of Intermetallic Phases in Hot-Dipped Aluminide Cr-Mo Steels, Appl. Surf. Sci., 277 (2013) 139-145.
D. Hwangbo, S. J. Choi, H. K. Lim, Y. S. Kim, Corrosion Properties for Hot-Dip Aluminized Steel and 304 Stainless Steel, Corro. & Protec., 9 (2010) 61-66.
H. H. Liu, W. J. Cheng, C. J. Wang, The Mechanism of Oxide Whisker Growth and Hot Corrosion of Hot-Dipped Al-Si Coated 430 Stainless Steels in Air-NaCl(g) Atmosphere, Appl. Surf. Sci., 257 (2011) 10645-10652.
J. Y. Song, J. C. Park, Y. S. Ahn, High Temperature Salt Corrosion Property of Ferritic Stainless Steels, J. Kor. Soc. Mar. Eng., 33 (2009) 860-866.
E. Frutos, P. Adeva, J. L. Gonzalez-Carrasco, P. Perez, Oxidation Behavior of AISI 316 Steel Coated by Hot Dipping in an Al-Si Alloy, Surf. & Coat. Tech., 236 (2013) 188-199.
S. O. Chong, I. C. Park, M. S. Han, S. J. Kim, Evaluation of Electrochemical Corrosion Characteristics for Hot-Dip Aluminized 304 Stainless Steel in Seawater, J. Kor. Inst. Surf. Eng., 48 (2015) 354-359.
Annual Book of ASTM Standards G32-92, ASTM International, PA, (1992) 113.
U. R. Kattner, T. B. Massalski, Binary Alloy Phase Diagrams, ASM International, Material Park, Ohio, (1990) 147.
W. Cheng, C. Wang, Growth of Iintermetallic Layer in the Aluminide Mild Steel during Hot-Dipping, Surf. & Coat. Tech., 204 (2009) 824-828.
S. Kobayashi, T. Yakou, Control of Intermetallic Compound Layers at Interface Between Steel and Aluminum by Diffusion-Treatment, Mater. Sci. Eng., A338 (2002) 44-53.
M. V. Akdeniz, A. O. Mekhrabov, T. Yilmaz, The Role of Si Addition on the Interfacial Interaction in Fe-Al Diffusion Layer, Scripta Metallurgica et materilia, 31 (1994) 1723-1728.
M. G. Fontana, Corrosion Engineering, 3rd Ed. McGraw-Hill Book Company, New York (1986).
D. A. Jones, Principles and Prevention of Corrosion, Prentice Hall, (2011) 80.
G. Bregliozzi, A. D. Schino, S. I. U. Ahmed, J. M. Kenny, H. Haefke, Cavitation Wear Behaviour of Austenitic Stainless Steels with Different Grain Sizes, Wear, 258 (2005) 503-510.
S. J. Kim, K. Y. Hyun, Investigation on Surface Hardening and Corrosion Characteristics by Water Cavitation Peening with Time for Al 5052-O Alloy, Corro. Sci. & Tech., 11 (2012) 151-156.
S. J. Kim, S. J. Lee, S. O. Chong, Electrochemical Characteristics under Cavitation-Erosion for STS 316L in Seawater, Mater. Res. Bulletin, 58 (2014) 244-247.
S. K. Jang, S. O. Chong, M. S. Han, S. J. Kim, Characteristics Evaluation with Cavitation Condition of 304 Stainless Steel in Seawater Environment, J. Kor. Inst. Surf. Eng., 45 (2012) 278-283.