Macroscopic criteria for the deformation and fracture of iron based alloys
| Autor: | Lev B. Zuev, L. V. Danilova, Alexey G. Lunev, Dina Orlova |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Ductile Fracture lcsh:Mechanical engineering and machinery lcsh:TA630-695 02 engineering and technology Digital Speckle Photography Plasticity Deformation (meteorology) Steels Ductile Fracture Ultrasound Velocity 0203 mechanical engineering Nondestructive testing lcsh:TJ1-1570 business.industry Mechanical Engineering Metallurgy lcsh:Structural engineering (General) Mechanics 021001 nanoscience & nanotechnology Autowave 020303 mechanical engineering & transports Mechanics of Materials Iron based Fracture (geology) Steels 0210 nano-technology business Size effect on structural strength Necking |
| Zdroj: | Frattura ed Integrità Strutturale, Vol 11, Iss 42 (2017) Frattura ed Integrità Strutturale; Vol. 11 No. 42 (2017): October 2017; Pages 293-302 Frattura ed Integrità Strutturale; V. 11 N. 42 (2017): October 2017; Pages 293-302 Frattura ed Integrità Strutturale, Vol 11, Iss 42, Pp 293-302 (2017) |
| ISSN: | 1971-8993 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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