Quantitative Characterization of Ultrafine Grained 12GBA Steel with Scanning Tunnel Microscopy

Dettagli Bibliografici
Parent link:AIP Conference Proceedings
Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020127, 5 p.]
Enti autori: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра общей физики (ОФ), Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра материаловедения в машиностроении (ММС)
Altri autori: Kuznetsov P. V. Pavel Viktorovich, Rakhmatulina T. Tanzilya, Panin V. E. Viktor Evgenyevich, Shumakova D. Dariya
Riassunto:Title screen
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 lowangle boundary fraction and non equilibrium grain boundary segregation.
Режим доступа: по договору с организацией-держателем ресурса
Lingua:inglese
Pubblicazione: 2016
Soggetti:
Accesso online:http://dx.doi.org/10.1063/1.4966420
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652709

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200 1 |a Quantitative Characterization of Ultrafine Grained 12GBA Steel with Scanning Tunnel Microscopy  |f P. V. Kuznetsov [et al.] 
203 |a Text  |c electronic 
300 |a Title screen 
320 |a [References: 13 tit.] 
330 |a 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 lowangle boundary fraction and non equilibrium grain boundary segregation. 
333 |a Режим доступа: по договору с организацией-держателем ресурса 
461 0 |0 (RuTPU)RU\TPU\network\4816  |t AIP Conference Proceedings 
463 0 |0 (RuTPU)RU\TPU\network\17851  |t Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016  |o Proceedings of the International conference, 19–23 September 2016, Tomsk, Russia  |f National Research Tomsk Polytechnic University (TPU); eds. V. E. Panin ; S. G. Psakhie ; V. M. Fomin  |v [020127, 5 p.]  |d 2016 
610 1 |a электронный ресурс 
610 1 |a труды учёных ТПУ 
610 1 |a количественная характеристика 
610 1 |a стали 
610 1 |a 12ГБА 
610 1 |a сканирующая туннельная микроскопия 
610 1 |a деформации 
610 1 |a механическая обработка 
610 1 |a стальные конструкции 
701 1 |a Kuznetsov  |b P. V.  |c physicist  |c Associate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences  |f 1952-  |g Pavel Viktorovich  |3 (RuTPU)RU\TPU\pers\34499  |9 17882 
701 1 |a Rakhmatulina  |b T.  |g Tanzilya 
701 1 |a Panin  |b V. E.  |c Director of Russian materials science center  |c Research advisor of Institute of strength physics and materials science of Siberian branch of Russian Academy of Sciences  |f 1930-  |g Viktor Evgenyevich  |3 (RuTPU)RU\TPU\pers\26443 
701 1 |a Shumakova  |b D.  |g Dariya 
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