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Effects of cooling rate and annealing treatment on sensitization of austenitic-ferritic duplex stainless steel

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Abstract

Duplex stainless steel has higher corrosion resistance and better mechanical properties than conventional type 300 series stainless steel. The corrosion behavior of duplex stainless steel is strongly dependent on the ratio, shape, size and distribution of austenite and ferrite phase in the microstructure. The relationship between the microstructure and the corrosion behavior of the duplex stainless steel was studied. For this purpose, the duplex stainless steel samples were solution heal treated at 1150°C followed by either cooling at various rates (water quenching, air coooling, furnace colling with door opened and door closed) to 820°C and then water quenching to room temperature, or quenching to room temperature and annealing heat treatment at 840°C for various lengths of time. A double loop electrochemical polentiodynamic reactivation (EPR) test was carried out to examine the effect of various cooling procedures or annealing treatment on the sensitization of duplex stainless steel. The grain size, shape, and distribution of the two phases were examined under microscope. From the test results, the relationships were discussed among heat treatment, electrochemical properties and microstructure.

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References

  1. E. Otero, C. Merino, A. Pardo, J. Hernaez and F. Rauchle,Rev. Metal 25, 393 (1989).

    Google Scholar 

  2. E. Symniotis,Corrosion 46, 2 (1990).

    CAS  Google Scholar 

  3. J. R. Scully and R. G. Kelly,Corrosion 42, 537 (1986).

    CAS  Google Scholar 

  4. P. Merino, X. R. Novoa, G. Pena, E. Porto and L. Espada,Mater. Sci. Tech. 9, 168 (1993).

    CAS  Google Scholar 

  5. T. G. Gooch and R. N. Gunn,Materials Processing,58 (1995).

  6. C. J. Long and W. T. Delong,J. of Welding, 281 (1983).

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Authors and Affiliations

  1. Mechanical Engineering Department, R.O.K. Naval Academy, 88-2-3 Aengkok-dong, 645-797, Chinhae, Korea

    Hak Lui Lee & Patrick J. Moran

  2. Mechanical Engineering Department, U.S. Naval Academy, 21401, Annapolis, MD, USA

    Patrick J. Moran

Authors
  1. Hak Lui Lee
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  2. Patrick J. Moran
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Lee, H.L., Moran, P.J. Effects of cooling rate and annealing treatment on sensitization of austenitic-ferritic duplex stainless steel. Metals and Materials 4, 1085–1091 (1998). https://doi.org/10.1007/BF03025980

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  • DOI: https://doi.org/10.1007/BF03025980

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