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Relationship between intercrystalline corrosion of stainless steels and the thermodynamic characteristics of carbides

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Conclusions

  1. 1.

    A relationship was established between the thermodynamic characteristic of carbides in Cr−Ni steels: the temperature at which carbides are precipitated Tp and the characteristics of susceptibility to ICC (Tmax, τmin). With decreasing Tp the range of susceptibility to ICC shifts toward lower Tmax and higher τmin.

  2. 2.

    It was found that Tmax can be determined from the thermodynamic characteristics of carbide formation.

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Literature cited

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    A. P. Gulyaev and T. B. Tokareva, "Effect of carbon and nickel on intercrystalline corrosion of austenitic Cr−Ni stainless steels", Metal. i Term. Obrabotka Metal., 2, 29–37 (1971).

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Additional information

Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 2–6, December, 1973.

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Bogolyubskii, S.D., Ul'yanin, E.A. Relationship between intercrystalline corrosion of stainless steels and the thermodynamic characteristics of carbides. Met Sci Heat Treat 15, 1021–1025 (1973). https://doi.org/10.1007/BF00651737

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Keywords

  • Carbide
  • Stainless Steel
  • Thermodynamic Characteristic
  • Carbide Formation
  • Intercrystalline Corrosion