동력기계공학회지 (Journal of Power System Engineering)

  • 제16권5호
  • /
  • Pages.76-82
  • /
  • 2012
  • /
  • 2713-8429(pISSN)
  • /
  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
권호 표지
DOI QR코드

DOI QR Code

22Cr 린 듀플렉스 스테인리스강의 공식저항성에 미치는 Mn과 Ni 첨가의 영향

Effect of Alloying Elements of Mn and Ni on the Pitting Corrosion Resistance of 22Cr Lean Duplex Stainless Steel

  • 안용식 (부경대학교 재료공학과) ;
  • 배근국 (부경대학교 재료공학과)
  • Ahn, Y.S. (Department of Materials Science and Engineering, PuKyong National University) ;
  • Bae, K.K. (Department of Materials Science and Engineering, PuKyong National University)
  • 투고 : 2012.05.25
  • 심사 : 2012.08.07
  • 발행 : 2012.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Duplex stainless steels have the dual microstructure of austenite and ferrite phases. This steel exhibits generally a high corrosion resistance and higher mechanical strength compared with austenitic stainless steels. The steels used in the investigation have the chemical composition of Fe-22Cr-xNi-yMn-0.2N in which the contents of Ni and Mn were varied with maintaining the equal [Ni/Cr] equivalent. The fraction of ferrite phase was increased with the increase of annealing temperature. The impact factor of Mn element on the [Ni] equivalent was amended on the basis of the results of the investigation. 4Mn-2Ni alloy showed the highest pitting corrosion resistance. The fraction ratio, grain size and misorientation angle between grains were measured, and the correlation with pitting potential was investigated.

키워드

참고문헌

  1. Robert N Gunn, 1997, "Duplex stainless steels 1st ed", Woodhead Publishing Ltd., Cambridge England, pp. 1-6.
  2. J.M.SYKES, 1996, "The effect of phase compositions on the pitting corrosion of 25Cr duplex stainless steel in chloride solutions", Corrosion Science, Vol.38, No.8, pp. 1319-1330. https://doi.org/10.1016/0010-938X(96)00022-4
  3. J.B. Lee, 2004, "Standardization of Critical Pitting Temperature Measurement by Electrochemical Testing Method", Kookmin University, Seoul, pp. 7-11.
  4. Masanori Onozuka, 1998, "Low-activation Mn -Cr austenitic stainless steel with further reduced content of long-lived radioactive elements", Journal of Nuclear Materials, Vol.255, No.2, pp. 129.
  5. R.Merello, 2003, "Influence of chemical composition on the pitting corrosion resistance of non-standard low-Ni high-Mn-N duplex stainless steels", Corrosion Science, Vol.45, No.5, pp. 909-921. https://doi.org/10.1016/S0010-938X(02)00154-3
  6. Kim, H. J., Lee, H. W, Lee, J. M. and C. Y. Kang, 2006, "Effect of Grain Size on Corrosion Resistance and High Temperature Oxidation Behavior of 22Cr-15Ni-5W Super Austenitic Stainless Steels", the Journal of the Korean Society of Power System Engineering, Vol. 10, No. 3, pp. 51-57.
  7. K.J. Park, 2005, "Effects of Manganese on the passivity of Fe-18Cr-xMn(x=0, 6, 12)", Korea Advanced Institute of Science and Technology, Daejeon, pp. 32-40.
  8. Hua Tan and Yiming Jiang, 2009, "Effect of annealing temperature on the pitting corrosion resistance of super duplex stainless steel UNS S32750", MATERIALS CHARACTERIZATION, Vol.60, No.9, pp. 1049-1054. https://doi.org/10.1016/j.matchar.2009.04.009
  9. Y.S Ahn, J.M Kim and B.H Jeong, 2002, "Effect of aging treatment and microstructural evolution on corrosion resistance of W substituted 2205 duplex stainless steel", Material Science and Technology, Vol.18, pp. 1-7. https://doi.org/10.1179/026708301125000140
  10. S.K Hwang, 2007, "Trends in Improving the Structural Materials Properties of Titanium-based Alloys", The National Academy of Science, Natural Science, Vol.46, No.2, pp. 1-29.
  11. L.KLINGER and E.RABKIN, 2001, "Effects of surface anisotropy on grain boundary grooving", INTERFACE SCIENCE, Vol.9, pp. 55-63. https://doi.org/10.1023/A:1011270830969
  12. W.W.Mullins, 1957, "Theory of thermal grooving, J.Appl.Phys. Vol.28, pp. 333-339. https://doi.org/10.1063/1.1722742
  13. G. Wranglen, 1974, "The influence of non-metallic inclusion nature and shape on the pitting corrosion susceptibility of 18Cr-9Ni and 17Cr-11Ni-2Mo austenitic stainless steels" Corrosion Science, Vol.14, pp. 331. https://doi.org/10.1016/S0010-938X(74)80047-8

피인용 문헌

  1. The Influence of Pulse Frequency and Duty Factor on Surface Characteristics during Low Temperature Plasma Nitrocarburizing Treatment of Duplex Stainless Steel vol.47, pp.5, 2014, https://doi.org/10.5695/JKISE.2014.47.5.221