Improving the Durability of Stamping Tools from Kh12MF Steel by Quenching in High-Pressure Nitrogen and Thermal Cycling

A possibility of using hardening treatment of the stamping tools in high-pressure nitrogen with thermal cycling was analyzed. A thermal field of Kh12MF steel batches under accelerated heating and cooling conditions during thermal cycling was studied. A satisfactory agreement between the experimental and prescribed temperature conditions in the central and peripheral batch regions has been established. A thermal cycling with subsequent quenching was shown to have a positive effect on the structure, hardness, and impact toughness of steel.

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Correspondence to A. E. Smirnov.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 31 – 36, February, 2020.

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Smirnov, A.E., Plokhikh, A.I., Ryzhova, M.Y. et al. Improving the Durability of Stamping Tools from Kh12MF Steel by Quenching in High-Pressure Nitrogen and Thermal Cycling. Met Sci Heat Treat (2020). https://doi.org/10.1007/s11041-020-00525-0

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Key words

  • dies
  • stamping tools
  • die steels
  • thermal cycling treatment
  • hardness
  • impact toughness
  • tool durability