Quantitative characterization of ultrafine grained 12GBA steel with scanning tunnel microscopy

Pavel Kuznetsov, Tanzilya Rakhmatulina, Victor Panin, Dariya Shumakova

Результат исследования: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)

Аннотация

Coarse grained 12GBA steel was machined by multiaxial isothermal forging and warm rolling. Quantitative characteristics of steel structure were studied with scanning tunnel microscopy. Deformation processing was found to lead to ultrafine-grained structure formation, lamellar cementite fragmentation and its further spheroidization. Relative energies of individual ferrite/pearlite and intraphase pearlite boundaries were estimated by grain boundary dihedral angle measurement. It was revealed that ferrite/pearlite boundary energy is 1.5-2 times higher than the energy of intraphase pearlite boundary. Cumulative distribution functions for internal interfaces energy showed the decrease in relative energy after deformation processing as compared to coarse grained state. Obtained results were explained by an increase of low-angle boundary fraction and non equilibrium grain boundary segregation.

Язык оригиналаАнглийский
Заголовок главной публикацииAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Подзаголовок главной публикацииProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
ИздательAmerican Institute of Physics Inc.
Том1783
ISBN (электронная версия)9780735414457
DOI
Статус публикацииОпубликовано - 10 ноя 2016
СобытиеInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Российская Федерация
Длительность: 19 сен 201623 сен 2016

Конференция

КонференцияInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
СтранаРоссийская Федерация
ГородTomsk
Период19.9.1623.9.16

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Kuznetsov, P., Rakhmatulina, T., Panin, V., & Shumakova, D. (2016). Quantitative characterization of ultrafine grained 12GBA steel with scanning tunnel microscopy. В Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Том 1783). [020127] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966420