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Corrosion of stainless steel welds in acid solutions

  • Corrosion of Metal
  • Published:
Metal Science and Heat Treatment of Metals Aims and scope

Summary

  1. 1.

    Heat treatment has a great influence on the corrosion resistance of welds, those not heat treated, and those water quenched, having better properties. A short-period tempering after heat treatment considerably increases the overall rate of general corrosion. A stabilizing anneal lowers the general corrosion rate, but it is useful when followed by short-period tempering in the dangerous temperature range (i. e. within which sensitization occurs).

  2. 2.

    Welds suffer concentrated intergranular (knife-line) corrosion in the junction zone. The deepest corrosion is observed in welds reheated for two hours at 650°C (1200°F).

  3. 3.

    In acid oxidizing solutions titanium-stabilized welds corrode more rapidly than unstabilized welds. Weld metal stabilized and not stabilized with titanium, particularly after short-period tempering, suffers intergranular corrosion at the same rate.

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References

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Authors and Affiliations

  1. Institute for Physical Chemistry, USSR

    M. M. Kurtepov & A. S. Gryaznova

Authors
  1. M. M. Kurtepov
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  2. A. S. Gryaznova
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Kurtepov, M.M., Gryaznova, A.S. Corrosion of stainless steel welds in acid solutions. Met Sci Heat Treat 1, 47–50 (1959). https://doi.org/10.1007/BF00820274

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  • DOI: https://doi.org/10.1007/BF00820274

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