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Thermomechanical treatment of structural carbon steel

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

Conclusions

  1. 1.

    High temperature thermomechanical treatment of medium carbon structural steels subjected to plastic deformation by torsion during this treatment results in the best mechanical properties, the highest corrosion resistance and the highest corrosion fatigue resistance when the degree of deformation during the treatment is of a given value. This degree of plastic deformation during thermomechanical treatment is not constant and depends on the character and the conditions of tests. High degrees of plastic deformation should not be used during thermomechanical treatment because they induce intense recrystallization of the deformed austenite and also the precipitation of large amounts of products of nonmartensitic transformation during cooling.

  2. 2.

    Changes in the heating rate between 5 and 30°/sec do not affect the mechanical properties. An increase of the heating rate to 200°/sec increases the strength and the ductility of the steel.

  3. 3.

    The conclusions of some investigator who negate the role of fragmentation of martensite crystals in the strengthening of steel by thermomechanical treatment were confirmed by our investigations.

  4. 4.

    The use of high temperature thermomechanical treatment is particularly effective when a steel with a martensite or troostite-martensite structure is subjected to low temperature tempering.

  5. 5.

    High temperature thermomechanical treatment in which plastic deformation is induced by torsion is promising for shafts, bars, torsion bars, and other machine parts having the shape of solids of rotation.

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Literature cited

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Authors and Affiliations

  1. Physicomechanical Institute of the Academy of Sciences UkrSSR, Kiev, USSR

    V. I. Pokhmurskii & G. V. Karpenko

Authors
  1. V. I. Pokhmurskii
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  2. G. V. Karpenko
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 29–35, February, 1965.

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Pokhmurskii, V.I., Karpenko, G.V. Thermomechanical treatment of structural carbon steel. Met Sci Heat Treat 7, 99–104 (1965). https://doi.org/10.1007/BF00655813

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  • DOI: https://doi.org/10.1007/BF00655813

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