Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Austenite on the Pitting Corrosion of 202 Stainless Steel with Two Phases of Austenite and Martensite

오스테나이트와 마르텐사이트 2상 조직을 갖는 202 스테인리스강의 공식에 미치는 오스테나이트의 영향

  • Kim, Jong-Sig (Department of Metallurgical Engineering, Pukyong National University) ;
  • Kim, Young-Hwa (Department of Metallurgical Engineering, Pukyong National University) ;
  • Kim, Hee-Won (Department of Metallurgical Engineering, Pukyong National University) ;
  • Koo, Jeong-Yeup (Department of Metallurgical Engineering, Pukyong National University) ;
  • Sung, Ji-Hyun (Dong-A University Research Facilities Center) ;
  • Kang, Chang-Yong (Department of Metallurgical Engineering, Pukyong National University)
  • 김종식 (부경대학교 금속공학과) ;
  • 김영화 (부경대학교 금속공학과) ;
  • 김희원 (부경대학교 금속공학과) ;
  • 구정엽 (부경대학교 금속공학과) ;
  • 성지현 (동아대학교 공동기기센터) ;
  • 강창룡 (부경대학교 금속공학과)
  • Received : 2015.09.21
  • Accepted : 2015.12.28
  • Published : 2016.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Effects of austenite on the pitting corrosion in 202 stainless steel with two phase of austenite and martensite were investigated through the electrochemical polarization test. Two phases structures of martensite and austenite were obtained by reversed annealing treatment at the range of $500^{\circ}C-700^{\circ}C$ for 10min. in 70% cold-rolled 202 stainless steel. Volume fraction of reversed austenite has increased rapidly with an increase of annealing temperature. Pitting corrosion has arisen mainly on martensite phase in 202 stainless steel with two phases of austenite and martensite. Pitting current density has decreased with an increase of volume fraction of austenite. Consequently, pitting corrosion at martensite has occurred largely with an increase of volume fraction of austenite. Pitting corrosion was affected by volume fraction of austenite.

Keywords

References

  1. G. Gemmel, 1992, "Applications of stainless steel", ASM International, Stockholm, Sweden, pp. 664.
  2. Y. H. Kim, Y. S. Ahn, H. Y. Jeong, C. Y. Kang, B. H. Jeong and C. G. Kim, 1995, "Strength of Metastable Austenitic Stainless Steels by Reversion Treatment", Journal of the Kor. Inst. of Met. & Mater., Vol. 33, No. 11, pp. 1431-1437.
  3. C. Y. Kang, T. Y. Hur, Y. H. Kim, C. J. Koo, H. S. Han and S. H. Lee, 2012, "Effect of Deformation Temperature on Mechanical Properties of High Manganese Austenitic Stainless Steel", Journal of Ocean Engineering and Technology, Vol. 26, No. 3, pp. 55-60. https://doi.org/10.5574/KSOE.2012.26.3.055
  4. C. Y. Kang and T. Y. Hur, 2012, "Effect of Reverse Transformation on the Mechanical Properties of High Manganese Austenitic Stainless Steel", Journal of the Kor. Inst. of Met. & Mater., Vol. 50, No. 6, pp. 413-418. https://doi.org/10.3365/KJMM.2012.50.6.413
  5. Y. H. Kim, Y. S. Ahn, H. Y. Jeong, C. Y. Kang, B. H. Jeong and C. G. Kim, 1995, "Mechanical Properties of Ultrafine Grain (${\alpha}^{'}+{\gamma}$) Two Phase Stainless Steel", Journal of the Kor. Inst. of Met. & Mater., Vol. 33, No. 1, pp. 42-48.
  6. J. Y. Lee, J. N. Kim and C. Y. Kang, 2015, "Effect of thermo-mechanical treatment on the damping capacity of 316L stainless steel", Journal of the Kor. Inst. of Met. & Mater., Vol. 62, No. 12, pp. 919-925.
  7. J. H. Lee, G. J. Seo, B. H. Jeong and C. Y. Kang, 2014, "Effect of Aging Treatment on Pitting Corrosion of Super Duplex Stainless Steel Weld Metal", Journal of the Kor. Soc. for Pow. Sys. Eng., Vol. 18, No. 2, pp. 70-76. https://doi.org/10.9726/KSPSE.2014.18.2.070
  8. F. Tehovnic and B. Arzensek et al., 2011, "Microstructure Evolution in SAF 2507 Super Duplex Stainless Steel", Material and Technology, Vol. 45, No. 4, pp. 339-345.