Influence of the Structural Parameters of High-Carbon Steel on the Impact Strength

For a coil of rolled C86D steel subjected to accelerated continuous cooling from the hot-deformation temperatures, change in austenite grain size by scores no greater than 1–2 according to State Standard GOST 5639–82 has no significant influence on the impact strength. For C86D steel, the impact str...

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Bibliographic Details
Published inSteel in translation Vol. 48; no. 12; pp. 812 - 817
Main Authors Parusov, E. V., Gubenko, S. I., Sychkov, A. B., Chuiko, I. N., Sagura, L. V., Denisenko, A. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2018
Subjects
Chemistry and Materials Science
Materials Science
austenite grains
impact flexure
high-carbon steel
pearlite
ferrite–cementite phase boundary
steel strength
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Summary:For a coil of rolled C86D steel subjected to accelerated continuous cooling from the hot-deformation temperatures, change in austenite grain size by scores no greater than 1–2 according to State Standard GOST 5639–82 has no significant influence on the impact strength. For C86D steel, the impact strength is directly related to the extent of the ferrite–cementite phase boundaries: the impact strength increases with increase in the boundary length. These results are of practical interest in developing new alloys and conditions of deformation and heat treatment for high-strength pearlitic steels.
ISSN:0967-0912
1935-0988
DOI:10.3103/S0967091218120100