Macroscopic criteria for the deformation and fracture of iron based alloys

Dina V. Orlova; Alexey G. Lunev; Lidiya V. Danilova; Lev B. Zuev

doi:10.3221/IGF-ESIS.42.31

Macroscopic criteria for the deformation and fracture of iron based alloys

Authors

Dina V. Orlova Institute of Strength Physics and Materials Science SB RAS, 2/4 Akademicheskii Ave., 634055 Tomsk, Russia
Alexey G. Lunev Institute of Strength Physics and Materials Science SB RAS, 2/4 Akademicheskii Ave., 634055 Tomsk, Russia
Lidiya V. Danilova Institute of Strength Physics and Materials Science SB RAS, 2/4 Akademicheskii Ave., 634055 Tomsk, Russia
Lev B. Zuev Institute of Strength Physics and Materials Science SB RAS, 2/4 Akademicheskii Ave., 634055 Tomsk, Russia

DOI:

https://doi.org/10.3221/IGF-ESIS.42.31

Keywords:

Steels, Ductile Fracture, Ultrasound Velocity, Digital Speckle Photography

Abstract

In the article the deformation of different steels is analyzed using the autowave theory of plasticity. The article considers the possible use of an autowave model to formulate criteria for the structural strength of materials and elastic-plastic transition. The time and place of future fracture for steel samples are shown can be predicted before visible necking takes place by using the kinetic dependencies of localized plasticity domains at the prefracture stage. The results show that during elastic-plastic transition in lowcarbon steel, there is the break of the curve for the ultrasound velocity versus deformation, which can serve as an acoustic criterion of irreversible deformation for the pressure treatment of metals, the operation and nondestructive testing of products and structures.

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Published

29-09-2017

Issue

Vol. 11 No. 42 (2017): October 2017

Section

Miscellanea

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Macroscopic criteria for the deformation and fracture of iron based alloys. (2017). Frattura Ed Integrità Strutturale, 11(42), Pages 293-302. https://doi.org/10.3221/IGF-ESIS.42.31