Influence of notch shape on deformation mechanisms and energy parameters of fracture of 12Cr1MoV steel under impact loading

S. V. Panin, I. V. Vlasov, P. O. Maruschak, Dmitry D. Moiseenko, F. Berto, A. Vinogradov, R. T. Bischak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Impact loading curves and fracture energy of the notched 12Cr1MoV ductile steel specimens are analyzed. The qualitative description and quantitative parameters are obtained for major stages of ductile and brittle fracture depending on the shape of the notch and the stress stiffness ahead. It is shown that a zone with enhanced plasticity is formed in the vicinity of V-, U-, and I-shaped notches at 20°C testing temperature, giving rise to ductile fracture. The stress stiffness at the notch tip increased with testing temperature reduced to -40°C. Using the quantitative description of fracture surfaces, a physical-mechanical scheme of the specimen fracture was suggested for the case of enhanced and localized (constrained) plasticity near the stress concentrator tip.

Original languageEnglish
Title of host publicationAdvanced 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
PublisherAmerican Institute of Physics Inc.
Volume1783
ISBN (Electronic)9780735414457
DOIs
Publication statusPublished - 10 Nov 2016
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
Duration: 19 Sep 201623 Sep 2016

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
CountryRussian Federation
CityTomsk
Period19.9.1623.9.16

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Panin, S. V., Vlasov, I. V., Maruschak, P. O., Moiseenko, D. D., Berto, F., Vinogradov, A., & Bischak, R. T. (2016). Influence of notch shape on deformation mechanisms and energy parameters of fracture of 12Cr1MoV steel under impact loading. In 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 (Vol. 1783). [020183] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966477