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Metal Science and Heat Treatment

, Volume 33, Issue 6, pp 451–455 | Cite as

Phase transformations and heredity in iron-carbon alloys

  • S. S. D'yachenko
Article
  • 36 Downloads

Conclusions

  1. 1.

    Any phase transformation in steel is accomplished as a result of forming nuclei of a new phase by shear rebuilding of the lattice which is either accompanied by diffusion of carbon and alloying elements, or not. The difference in morphology and kinetics of martensitic and ‘normal’ transformations is connected with relaxation processes at an interphase boundary.

     
  2. 2.

    A consequence of the shear nature of transformation is the effect of heredity with α→γ-transformation (restoration of grain size, strengthening heredity). The completeness of realizing this effect depends on the degree of dislocation substructure stability.

     
  3. 3.

    With PTMT the stability of the dislocations structure of α-phase may be corrected by selecting the optimum original steel structure, the method and degree of deformation, and the post-deformation tempering regime.

     

Keywords

Grain Size Phase Transformation Relaxation Process Steel Structure Alloy Element 
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

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    A. L. Roitburd, "Features of phase transformations in crystals," in: Problems of Modern Crystallography [in Russian], Nauka, Moscow (1975).Google Scholar
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    A. L. Roitburd, "The modern state of martensitic transformation theory," in: Imperfection of the Crystal Structure and Martensitic Transformations [in Russian], Nauka, Moscow (1972).Google Scholar
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    I. N. Kidin, M. A. Shtremel', and V. I. Luzinov, "Shear mechanism of transformations with heating of annealed chromium iron," Fiz. Metal. Metalloved.,21, No. 4, 585–590 (1966).Google Scholar
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    V. D. Sadovskii, Structural Heredity in Steel [in Russian], Metallurgiya, Moscow (1973).Google Scholar
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    V. A. Zaimovskii and M. L. Bernshtein, "Preparatory thermomechanical treatment for carbon steel," Izv. Akad. Nauk SSSR, Metally, No. 3, 118–124 (1966).Google Scholar
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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • S. S. D'yachenko

There are no affiliations available

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