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Metal Science and Heat Treatment

, Volume 41, Issue 4, pp 154–158 | Cite as

Studies in the field of chemical heat treatment conducted by the department

  • V. I. Andryushechkin
Chemicothermal Treatment
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Conclusions

At the present time, the department is continuing research in the field of CHT in two principal directions, namely,
  1. (1)

    Simulating CHT processes on the whole and in various stages. Specifically, we simulate the processes of hydrogen redistribution in surface layers under the effect of residual stresses after CHT with allowance for the diagrams of working stresses and study the removal of hydrogen by using alloys that accumulate hydrogen (HAA).

     
  2. (2)

    Analytical and experimental studying of the structural strength of steel after CHT on the basis of linear fracture mechanics under the assumption that after the CHT the steel is a composite material. In particular, we study the effect of the phase composition and the structure of boronized and calorized coats on the structural strength of steels, including the creation of diagrams of structural strength and determination of the characteristics of crack resistance.

     

Keywords

Diffusion Layer Hydrogen Charge Boride Layer Drill Pipe Contact Melting 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • V. I. Andryushechkin

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