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Metal Science and Heat Treatment

, Volume 15, Issue 8, pp 694–696 | Cite as

Thermodiffusion chromizing of austenitic steels

  • A. V. Smirnov
  • É. N. Chemrukova-Boradaeva
  • A. D. Nachinkov
Technical Information

Conclusions

  1. 1.

    A mechanism is suggested for the formation of coatings by diffusion metallization.

     
  2. 2.

    On the basis of the distribution of nickel [2], measurements of the thickness of the coating, and examination of the microstructure it was found that the coatings consist of a built up diffusion layer and a diffusion layer proper. The thickness of the built up layer was 32 μ on steel Kh18N9 and 35 μ on steel KhN35VT coated at 1100° for 10 h, and the thickness of the diffusion layer proper was 88 and 25 μ respectively.

     
  3. 3.

    The distribution of nickel in the chromium coating on austenitic steels is due to diffusion of nickel from the depth of the sample into the built-up layer.

     
  4. 4.

    The use of burnishing after chromizing reduces the surface roughness and increases surface hardness.

     

Keywords

Microstructure Nickel Chromium Surface Roughness Diffusion Layer 
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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Literature cited

  1. 1.
    B. Prenosil, Anti-Corr. Meth. and Mater.,15, 10 (1968).Google Scholar
  2. 2.
    A. V. Smirnov et al., in: Heat Resistant and Thermally Stable Coatings [in Russian], Nauka, Moscow (1969).Google Scholar
  3. 3.
    P. Cralmiche, Rév. Metallurgie,47, 3 (1950).Google Scholar
  4. 4.
    P. Tielmann, Proc. ASTM,40 (1940).Google Scholar
  5. 5.
    Yu. N. Griboedov, Metal. i Term. Obrabotka Metal., 10 (1965).Google Scholar
  6. 6.
    Yu. G. Shneider, Cold Treatment of Precision Parts under Pressure [in Russian], Mascow-Leningrad (1956).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1974

Authors and Affiliations

  • A. V. Smirnov
  • É. N. Chemrukova-Boradaeva
  • A. D. Nachinkov

There are no affiliations available

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