Estimation of the Ultimate Fracture Toughness of Structural Steels under Stress Concentrations

Considering a steel type based on the behavior pattern of an alloy’s basic mechanical characteristics, a correlation has been found between the following: the characteristics of the ultimate fracture toughness of structural steels at the critical embrittlement onset temperature T b in the compound s...

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Bibliographic Details
Published in:Steel in translation 2020-08, Vol.50 (8), p.570-578
Main Authors: Shiyan, A. V., Meshkov, Yu. Ya, Polushkin, Yu. A.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Fracture toughness
Materials Science
Mechanical properties
Stress state
Structural steels
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Summary:Considering a steel type based on the behavior pattern of an alloy’s basic mechanical characteristics, a correlation has been found between the following: the characteristics of the ultimate fracture toughness of structural steels at the critical embrittlement onset temperature T b in the compound stress state B rNFb and B rC 0 b and the fracture toughness in the uniaxial stress state B rb through parameters that reflect the metal state in the loading elastic–plastic range. A method for the rational selection of structural steels for products that operate under the action of nonuniform force fields of different strengths has been developed.
ISSN:0967-0912
1935-0988
DOI:10.3103/S0967091220080100