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Thermal stability of thermomechanical strengthening of steel 40

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Conclusions

We investigated the stability of thermomechanical strengthening of steel 40, in which there is a partial intermediate transformation. Complete removal of the strengthening effect of HTTMT requires that the steel be annealed four times at 900° for 4 h. Intermediate annealing at 600° or normalization at 840° with holding up to 10 h does not impair the mechanical properties.

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Literature Cited

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Additional information

Moscow Institute of Steel and Alloys. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 26–28, September, 1970.

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Bernshtein, M.L., Zaimovskii, V.A. & Matevos'yan, A.P. Thermal stability of thermomechanical strengthening of steel 40. Met Sci Heat Treat 12, 745–747 (1970). https://doi.org/10.1007/BF00652723

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Keywords

  • Mechanical Property
  • Thermal Stability
  • Complete Removal
  • Intermediate Annealing
  • Strengthening Effect