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Metallurgist
Erschienen in: Metallurgist 5-6/2020

26.09.2020

Effect of Impact Toughness Anisotropy on Brittle Fracture Resistance Characteristics of High-Strength Steels Subjected to Thermomechanical Treatment

verfasst von: V. M. Goritskii, G. R. Shneiderov, O. V. Goritskii

Erschienen in: Metallurgist | Ausgabe 5-6/2020

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Abstract

The structure and mechanical properties under tension and impact bending of eleven batches of high-strength manganese-containing steels (Mn-steels) containing 0.09 to 0.14 wt.% Ti subjected to thermomechanical rolling were studied in the temperature range from –60 to +20 °С. It was found that the values of the coefficient of impact toughness anisotropy in the range of Ka = 2.0–4.9 increase at higher titanium content and decrease at higher aluminum content. The difference between ductile-to-brittle transition temperatures T50 and T34 for longitudinal and transverse KCV samples increases at higher contents of titanium, aluminum, sulfur, and carbon. This effect is caused by an earlier nucleation and growth of large dimples of ductile fracture around sizable inclusions preferentially located in the direction of rolling.
Vorheriger Artikel A Possibility of Producing Heat-Resistant Products in Induction Furnaces with Bottom Blowing
Nächster Artikel Effect of Excess Phase Precipitation on Strengthening of Structural Steels Prepared by Hot Stamping

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Metadaten
Titel
Effect of Impact Toughness Anisotropy on Brittle Fracture Resistance Characteristics of High-Strength Steels Subjected to Thermomechanical Treatment
verfasst von
V. M. Goritskii
G. R. Shneiderov
O. V. Goritskii
Publikationsdatum
26.09.2020
Verlag
Springer US
Erschienen in
Metallurgist / Ausgabe 5-6/2020
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-020-01012-w

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