Formation of bainite below martensite start temperature in quenching low carbon steel
According to the phase transformation kinetics that we recorded by dilatometry in rapid cooling of low carbon steel, some amount of isothermal bainite appeared in the middle of martensitic temperature range. Presumably caused by adiabatic heating in the exothermal transformation, such an unexpected...
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Peter the Great St.Petersburg Polytechnic University
2025-06-01
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| Series: | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
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| Online Access: | https://physmath.spbstu.ru/article/2025.80.10/ |
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| author | Zolotorevsky Nikolay Belikova Yulia Petrov Sergey Zisman Alexander |
| author_facet | Zolotorevsky Nikolay Belikova Yulia Petrov Sergey Zisman Alexander |
| author_sort | Zolotorevsky Nikolay |
| collection | DOAJ |
| description | According to the phase transformation kinetics that we recorded by dilatometry in rapid cooling of low carbon steel, some amount of isothermal bainite appeared in the middle of martensitic temperature range. Presumably caused by adiabatic heating in the exothermal transformation, such an unexpected effect was confirmed by TEM data on the lath thickness, dislocation density and carbide particles. Furthermore, to assess a volume fraction of the detected bainite, statistics of crystal curvature (orientation gradient) was analyzed in terms of EBSD data. The combined analysis of results obtained using those three techniques suggests that certain amount of lath type bainite is formed not only below the martensite start temperature but also slightly above it. |
| format | Article |
| id | doaj-art-a15d61a0a22a4c36b52ffc51406437e3 |
| institution | Matheson Library |
| issn | 2405-7223 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Peter the Great St.Petersburg Polytechnic University |
| record_format | Article |
| series | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
| spelling | doaj-art-a15d61a0a22a4c36b52ffc51406437e32025-06-27T12:30:15ZengPeter the Great St.Petersburg Polytechnic UniversitySt. Petersburg Polytechnical University Journal: Physics and Mathematics2405-72232025-06-0118210.18721/JPM.1821020714726Formation of bainite below martensite start temperature in quenching low carbon steelZolotorevsky Nikolay0https://orcid.org/0000-0002-0185-5452Belikova Yulia1Petrov Sergey2https://orcid.org/0000-0001-6732-7217Zisman Alexander3https://orcid.org/0000-0002-9431-7097Peter the Great St. Petersburg Polytechnic UniversityNRC «Kurchatov Institute» - CRISM «Prometey»NRC «Kurchatov Institute» - CRISM «Prometey»NRC «Kurchatov Institute» - CRISM «Prometey»According to the phase transformation kinetics that we recorded by dilatometry in rapid cooling of low carbon steel, some amount of isothermal bainite appeared in the middle of martensitic temperature range. Presumably caused by adiabatic heating in the exothermal transformation, such an unexpected effect was confirmed by TEM data on the lath thickness, dislocation density and carbide particles. Furthermore, to assess a volume fraction of the detected bainite, statistics of crystal curvature (orientation gradient) was analyzed in terms of EBSD data. The combined analysis of results obtained using those three techniques suggests that certain amount of lath type bainite is formed not only below the martensite start temperature but also slightly above it.https://physmath.spbstu.ru/article/2025.80.10/microstructuremartensitebainiteisothermal transformationquenchinglow carbon steel |
| spellingShingle | Zolotorevsky Nikolay Belikova Yulia Petrov Sergey Zisman Alexander Formation of bainite below martensite start temperature in quenching low carbon steel St. Petersburg Polytechnical University Journal: Physics and Mathematics microstructure martensite bainite isothermal transformation quenching low carbon steel |
| title | Formation of bainite below martensite start temperature in quenching low carbon steel |
| title_full | Formation of bainite below martensite start temperature in quenching low carbon steel |
| title_fullStr | Formation of bainite below martensite start temperature in quenching low carbon steel |
| title_full_unstemmed | Formation of bainite below martensite start temperature in quenching low carbon steel |
| title_short | Formation of bainite below martensite start temperature in quenching low carbon steel |
| title_sort | formation of bainite below martensite start temperature in quenching low carbon steel |
| topic | microstructure martensite bainite isothermal transformation quenching low carbon steel |
| url | https://physmath.spbstu.ru/article/2025.80.10/ |
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