Effect of thermomechanical treatment on the resistance of low-carbon low-alloy steel to brittle fracture

Structure and mechanical properties of rolled plates (20–35 mm thick) of low-carbon low-alloy steel subjected to thermomechanical treatment (TMT) according to various regimes under laboratory and industrial conditions have been studied. Structural factors that favor obtaining high mechanical propert...

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Bibliographic Details
Published in:Physics of metals and metallography 2015-02, Vol.116 (2), p.189-199
Main Authors: Schastlivtsev, V. M., Tabatchikova, T. I., Yakovleva, I. L., Del’gado Reina, S. Yu, Golosienko, S. A., Pazilova, U. A., Khlusova, E. I.
Format: Article
Language:English
Subjects:
Alloys
Brittle fracture
Chemistry and Materials Science
Diffusion
Low alloy steels
Materials Science
Mechanical properties
Metallic Materials
Phase Transformations
Plates (structural members)
Quenching
Retarding
Steel
Structural steels
Structure
Tempering
Thermomechanical treatment
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Summary:Structure and mechanical properties of rolled plates (20–35 mm thick) of low-carbon low-alloy steel subjected to thermomechanical treatment (TMT) according to various regimes under laboratory and industrial conditions have been studied. Structural factors that favor obtaining high mechanical properties have been established. The retarding action of TMT on softening upon tempering has been revealed. The reasons for the decrease in the resistance to brittle fracture of the steel subjected to TMT, repeated quenching from the temperature of the furnace heating, and tempering have been determined.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X15020106