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Cavitation-erosion Resistance of Stabilized Stainless Steel with Niobium Addition in Sea Water Environment

해수 내 캐비테이션-침식 저항성에 미치는 스테인리스강의 Nb 첨가의 영향

  • Choi, Yong-Won (Gimpo maritime policebox) ;
  • Han, Min-Su (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Kim, Seong-Jong (Division of Marine Engineering, Mokpo National Maritime University)
  • 최용원 (김포해양경비안전센터) ;
  • 한민수 (목포해양대학교 기관시스템공학부) ;
  • 김성종 (목포해양대학교 기관시스템공학부)
  • Received : 2016.06.15
  • Accepted : 2016.06.29
  • Published : 2016.06.30

Abstract

Stainless steel is widely used in various industries due to its excellent anti-corrosion characteristics. However, if the stainless steel is exposed to high speed fluid flow and chloride ion in the marine environment, corrosion and cavitation damage occurred on the surface easily. Therefore, to prevent these problems, stabilzed stainless steel is applied to offshore and shipbuilding industries. In this study, stabilized stainless steel specimen was made by 19%Cr-9%Ni with different Nb contents (0.29%, 0.46% and 0.71%). And then, their cavitation characteristics were investigated. As a result, the characteristics of cavitation resistance of stainless steel could be improved by increasing Nb contents.

Keywords

References

  1. A. J. Sedriks, Corrosion of Stainless Steels, 2nd ed., John Wiley & Sons, Inc., New York (1996).
  2. E. R. Hwang, B. H. Seo, S. G. Kang, A Study on the Intergranular Corrosion Behavior of Stainless Steels in Molten Carbonate Salt by EPR Test, J. Kor. Inst. Surf. Eng., 31 (1998) 223-230.
  3. G. Bregliozzia, 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. https://doi.org/10.1016/j.wear.2004.03.024
  4. H. U. Jang, J. H. Lee, Y. H. Kim, W. S. Chung, Study on Passive Layer Characteristics of Chemically Passivated Duplex Stainless Steel, J. Kor. Inst. Surf. Eng., 45 (2012) 219-225. https://doi.org/10.5695/JKISE.2012.45.6.219
  5. H. C. Choe, Effects of Plasma-Nitriding on the Surface Characteristics of Stainless Steels Containing Nb, J. Kor. Inst. Surf. Eng., 37 (2004) 119-127.
  6. J. H. Lee, Y. W. Choi, S. K. Jang, S. J. Kim, Effects of Alloy Elements on Electrochemical Characteristics Improvement of Stainless Steel in Sea Water, J. Korean Soc. Mar. Eng., 38 (2014) 890-899. https://doi.org/10.5916/jkosme.2014.38.7.890
  7. Annual Book of ASTM standards G32-92, Standard Method of Vibratory Cavitation Erosion Test, ASTM International, Philadelphia (2004) 119.
  8. M. Shome, D. S. Sarma, O. P. Gupta, O. N. Mohanty, Precipitate Dissolution and Grain Growth in the Heat Affected Zone of HSLA-100 Steel, ISIJ Int., 43 (2003) 1431-1437. https://doi.org/10.2355/isijinternational.43.1431
  9. J. H. Lee, Y. W. Choi, S. K. Jang, S. J. Kim, Effects of Stabilizing Elements on Mechanical and Electrochemical Characteristics of Stainless Steel in Marine Environment, J. Korean Soc. Mar. Eng., 38 (2014) 1087-1093. https://doi.org/10.5916/jkosme.2014.38.9.1087
  10. J. O. Moon, C. H. Lee, Precipitation and Precipitate Coarsening Behavior according to Nb Addition in the Weld HAZ of a Ti-containing Steel, J. Korean Weld. Join. Soc., 26 (2008) 76-82. https://doi.org/10.5781/KWJS.2008.26.1.076
  11. S. H. Cho, C. S. Lee, C. G. Kang, Evaluation of Mechanical Properties of T5-A356 Alloy with Grain Size by Using Nanoindenter and AFM, Int. J. Precis. Eng. Manuf., 10 (2006) 293-294.
  12. J. G. Auret, O. F. R. A. Domm, G. J. Wright, F. P. A. Robinson, Influence of Cathodic and Anodic Currents on Cavitation Erosion, Corrosion, 49 (1993) 910-920. https://doi.org/10.5006/1.3316017
  13. S. G. Kang, A Study on Intergranular Corrosion of Austenitic Stainless Steel in Molten Carbonate, Hanyang univ., (1997) 1-6.
  14. S. J. Kim, K. Y. Hyun, Investigation on Surface Hardening and Corrosion Characteristics by Water Cavitation Peening with Time for Al 5052-O Alloy, Corros. Sci. Tech., 11 (2012) 151-156. https://doi.org/10.14773/cst.2012.11.4.151
  15. J. F. Santa, J. C. Baena, A. Toro, Slurry Erosion of Thermal Spray Coatings and Stainless Steels for Hydraulic Machinery, Wear, 263 (2007) 258-264. https://doi.org/10.1016/j.wear.2006.12.061

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  1. Cavitation-Erosion Characteristics of the Stainless Steel with Adding Ti Stabilizer Element in Sea Water vol.49, pp.4, 2016, https://doi.org/10.5695/JKISE.2016.49.4.344