Explosions, Powerful Shock Waves, and Extreme States of Matter

Фортов, В. Е.; Ilkaev, R.; Rykovanov, G. N.; Селемир, В. Д.; Sharkov, B.

doi:10.1134/s1019331621030059

Cited by 4 publications

(4 citation statements)

References 35 publications

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“…Such a physical process leads to the cumulation of energy of the interacting substances. Nowadays, it is established that increasing the density of the high-pressure phase is not a general rule [ 4 , 40 ]. Phase transitions and density changes significantly impact the mechanical properties of steel [ 29 ].…”

Section: Resultsmentioning

confidence: 99%

“…Experiments with shock waves are characterized by a wide range of attainable pressures and temperatures and extremely high rates of change. These circumstances open up unique opportunities for research in the physics of phase and polymorphic transformations, fracture physics, strength and plasticity, and materials science [ 4 ]. Furthermore, high-energy processing features make it possible to significantly change the physical and chemical properties of materials [ 5 ] and, consequently, the operational characteristics of tools and parts.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Alloying of Steels in the Super-Deep Penetration Mode

et al. 2022

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The dynamic effects observed in collisions represent a specific area of high-energy interaction located at the boundary of mechanics, hydrodynamics, shock wave physics, and alternating high-pressure regions. The paper shows that in the volume of a solid metal body, as a result of dynamic alloying by a high-speed stream of powder particles in the super-deep penetration mode (SDP), fiber structures of altering material arise, forming the framework of the composite material. The stream of powder particles in the metal obstacle following the path of least resistance and the impact of shock waves on particles results in a volumetric framework from the products of interaction between the injected and matrix materials. When using SDP, defective structural elements (channeled)—germs of reinforcing fibers arise. At the subsequent heat treatment, there is an intensive diffusion. The growth process of reinforcing fibers shifts to higher temperatures (as compared to the standard mode), leading to an increase in the bending strength of the fiber material up to 13 times for W6Mo5Cr4V2 high-speed tool steel. As a result of the completion of the growth of reinforcing fibers in the volume of the W6Mo5Cr4V2 high-speed tool steel, the material’s bending strength in 1.2 times is realized. Simultaneously, it provides an increase of wear resistance 1.7–1.8 times.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Alloying of Steels in the Super-Deep Penetration Mode

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Such a physical process leads to the cumulation of energy of the interacting substances. Nowadays, it is established that increasing the density of the high-pressure phase is not a general rule [4,40]. Phase transitions and density changes significantly impact the mechanical properties of steel.…”

Section: Changes In the Structure Of Carbon Steels After Dynamic Allo...mentioning

confidence: 99%

“…Experiments with shock waves are characterised by a wide range of attainable pressures and temperatures and extremely high rates of change. These circumstances open up unique opportunities for research in the physics of phase and polymorphic transformations, fracture physics, strength and plasticity, and materials science [4]. Furthermore, high-energy processing features make it possible to significantly change the physical and chemical properties of materials [5] and, consequently, the operational characteristics of tools and parts.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Alloying of Steels in the Super-Deep Penetration Mode

Usherenko¹,

Mironovs²,

Ушеренко³

et al. 2022

Preprint

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The dynamic effects observed in collisions represent a specific area of high-energy interaction located at the boundary of mechanics, hydrodynamics, shock wave physics, and alternating high-pressure regions. The paper shows that in the volume of a solid metal body, as a result of dynamic alloying by a high-speed stream of powder particles in the super-deep penetration mode (SDP), fibre structures of altering material arise, forming the framework of the composite material. The stream of powder particles in the metal obstacle following the path of least resistance and the impact of shock waves on particles results in a volumetric framework from the products of interaction between the injected and matrix materials. When using SDP, defective structural elements (channelled) - germs of reinforcing fibres arise. At the subsequent heat treatment, there is an intensive diffusion. The growth process of reinforcing fibres shifts to higher temperatures (as compared to the standard mode), leading to an increase in the bending strength of the fibre material up to 13 times for high-speed tool W6Mo5Cr4V2 steel. As a result of the completion of the growth of reinforcing fibres in the volume of the W6Mo5Cr4V2 steel, the material's bending strength in 1.2 times is realised. Simultaneously, it provides an increase of wear resistance 1.7-1.8 times.

show abstract