Analysis of Strain Hardening Mechanisms for Steel with a Bainitic Structure

Transmission electron diffraction microscopy is used to analyze strain hardening of steel with a bainitic structure. Contributions to strengthening are considered for lattice friction, interphase boundaries, dislocation substructure, carbide phases, alloying element atoms, and remote stress fields....

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Bibliographic Details
Published in:Metallurgist (New York) 2017-07, Vol.61 (3-4), p.303-310
Main Authors: Gromov, V. E., Nikitina, E. N., Ivanov, Yu. F., Aksenova, K. V.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Metallic Materials
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Summary:Transmission electron diffraction microscopy is used to analyze strain hardening of steel with a bainitic structure. Contributions to strengthening are considered for lattice friction, interphase boundaries, dislocation substructure, carbide phases, alloying element atoms, and remote stress fields. It is established that substructural and solid solution strengthening make the greatest contributions. The reason for steel loss of strength with large degrees of deformation is connected with activation of deformation microtwinning.
ISSN:0026-0894
1573-8892
DOI:10.1007/s11015-017-0493-x