Impact toughness of 12Cr1MoV steel. Part 1 – Influence of temperature on energy and deformation parameters of fracture

Impact toughness of 12Cr1MoV steel. Part 1 – Influence of temperature on energy and deformation parameters of fracture

Detalles Bibliográficos
Parent link:Theoretical and Applied Fracture Mechanics
Vol. 83: ICEAF-IV Engineering Against Failure.— 2016.— [P. 105–113]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Институт физики высоких технологий Кафедра материаловедения в машиностроении
Outros autores: Panin S. V. Sergey Viktorovich, Marushchak P. O. Pavel Orestovich, Vlasov I. V. Ilya Viktorovich, Ovechkin B. B. Boris Borisovich
Summary:Title screen
In the paper, the study of the impact toughness of 12Cr1MoV steel Charpy specimens at the temperature range from 20 °C to 600 °C is presented. It was revealed that the increase of the testing temperature from 20 °C to 375 °C and then to 600 °C causes the impact toughness to decrease by 1.2 and 2.42 times, respectively. The maximum energy of crack propagation during impact loading was observed at T = 375 °C, which is related to the increased resistance to crack propagation (cracking resistance) and sufficient strength (load capacity) of 12Cr1MoV steel. An approach to the quantitative description of impact fracture process was developed that includes the measurement of shear lip size as a quantitative fracture parameter. Scanning electron microscopy (SEM) was used to reveal and justify the reduction of load capacity at increased testing temperature and simultaneous increase of ductility and to describe the rival influence of such factors on the behavior and work of impact fracture.
Режим доступа: по договору с организацией-держателем ресурса
Publicado: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
Acceso en liña:http://dx.doi.org/10.1016/j.tafmec.2015.12.008
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=649087

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