Influence of the Direction of Propagation of the Main Crack on the Fracture Mechanism upon Impact Bending of Samples of High-Viscous Steel with a Filamentary Structure. Compression Region

—The fracture profiles and microhardness distribution in some regions of the compression region of Charpy samples of a high-viscous steel with a filamentary structure formed by the non-recrystallization controlled rolling with accelerated cooling have been studied. The mechanism of the plastic flow...

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Bibliographic Details
Published in:Physics of metals and metallography 2019-09, Vol.120 (9), p.907-913
Main Authors: Morozova, A. N., Schapov, G. V., Khotinov, V. A., Farber, V. M., Selivanova, O. V.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Controlled rolling
Crack propagation
Fracture mechanics
Impact strength
Materials Science
Metallic Materials
Microhardness
Notches
Plastic flow
Plastic properties
Recrystallization
Steel structures
Strength and Plasticity
Structural steels
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Summary:—The fracture profiles and microhardness distribution in some regions of the compression region of Charpy samples of a high-viscous steel with a filamentary structure formed by the non-recrystallization controlled rolling with accelerated cooling have been studied. The mechanism of the plastic flow in the compression region of impact samples with different types of notches has been investigated. It has been shown that, as a result of intense plastic flow, two plastic hinges with axes containing a high density of slip lines appear in the compression regions.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X19090096