Journal of Advanced Marine Engineering and Technology

  • 제28권2호
  • /
  • Pages.217-227
  • /
  • 2004
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

The Effect of Solution Heat Treatments on the Microstructure and Corrosion Behaviour for a Duplex Stainless Steel

  • 발행 : 2004.01.01
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초록

The bowl in a ship purifier suffers from high stress and high temperature in a detrimental heavy fuel oil environment. Duplex stainless steel(DSS) is a primary material to withstand this harsh condition. Newly-manufactured STS 329 grade DSS has been evaluated by various mechanical and electrochemical test methods. Eight heat treatment(HT) conditions with different temperature and time were applied to the DSS samples to improve corrosion resistance. Microstructure and polarization test results concluded the optimum HT condition was $1.090^{\circ}C$-60 minutes. Confirmation experiments for applying to a real bowl including stress corrosion cracking test exhibited the reproducibility of the optimum HT condition.

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참고문헌

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  2. Metal Hanbook ($9^{th)$ed.) v.13 ASM
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  8. ASTM Standard, E8-03 v.03.01 Standard Test Methods for Tension Testing of Metallic Materials
  9. ASTM Standard E5-94 v.03.02 Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements ASTM Standard
  10. Metal Handbook ($9^{th}$ ed.) v.9 ASM
  11. ASTM Standard. G30-94 v.03.02 Standard Practice for Making and Using U-Bend Stress Corrosion Test Specimen
  12. G 0575 Method of Copper Sulfate-Sulfuric Acid Test for Stainless Steel JIS Standard