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Relationship of Structure Parameters with Performance Characteristics of Shipbuilding Steels of Different Alloying

  • METAL SCIENCES. METALLURGY
  • Published:
Inorganic Materials: Applied Research Aims and scope

Abstract

The paper presents the results of a study of the relationship between strength and performance (ductile–brittle transition temperatures Tdb and zero plasticity NDT, critical opening at the crack tip CTOD at a test temperature of –40°C) on the structural parameters of hot-rolled plate made of low-carbon low-alloy steels with different contents of the main alloying and microalloying elements.

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Notes

  1. Tdb is the critical temperature of brittleness at which at least 70% of the fibrous component is observed in the fracture of a specimen of full-scale thickness with a concentrator in the form of a notch at three-point static bending before fracture.

  2. NDT is the critical brittleness temperature (“zero plasticity temperature”) defined as the maximum temperature at which a standard size specimen fractures with a brittle hardfacing and initiating a crack by a notch on its surface under impact loading.

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  1. National Research Center Kurchatov Institute—Central Research Institute of Structural Materials Prometey, 191015, St. Petersburg, Russia

    O. V. Sych & E. I. Khlusova

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  1. O. V. Sych
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  2. E. I. Khlusova
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Correspondence to O. V. Sych or E. I. Khlusova.

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Translated by V. Selikhanovich

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Sych, O.V., Khlusova, E.I. Relationship of Structure Parameters with Performance Characteristics of Shipbuilding Steels of Different Alloying. Inorg. Mater. Appl. Res. 12, 1439–1449 (2021). https://doi.org/10.1134/S2075113321060253

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