Microstructure and phase composition of a zirconium coating-silicon substrate system treated using high-current electron beams

Углов, В.В.; Koval, N. N.; Ivanov, Yu. F.; Petukhov, Yu. A.; Калин, А. В.; Тересов, А. Д.

doi:10.1134/s1027451013020201

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The concentrated flows of energy [2][3][4], the large plastic deformations [5][6][7][8] and the processes of long-term operation (e.g. in rails) [9,10] refer to such effects.…”

Section: Introductionmentioning

confidence: 99%

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

Романов¹,

Semina²,

Stepikov³

et al. 2017

AIP Conference Proceedings

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Abstract. The analysis of stress-strained state at the boundary «faced surface layer -substrate» is performed by methods of elasticity theory of inhomogeneous media, on exposure to the load distributed in a circle. The fundamental aspects of Kelvin -Helmholtz and Richtmayer -Meshkov instabilities are considered. The following methods are used for the research. The analytical method of solution is used for finding the temperature distribution of substrate and coating material as well as distribution of speed of material motion in deposition of the coating. Finite element method is required in accounting for the parameters of convective mixing. For the analysis of the proposed thickness and dispersion of the coating the concepts of hydrodynamic Kelvin -Helmholtz and Richtmayer -Meshkov instabilities are used. Using the mass, energy and momentum conservation laws, with allowance for the possible exothermal reactions, the system of equations of the mathematical model of electroexplosion synthesis on the basis of thermoreacting components of Ni-Al system is formulated. The degree of effect of model's parameters on dispersion and thickness of the coating is determined. The comparison of the modeling and experimental data is carried out. It is established that the due regard to the thermal effect of chemical reaction increases considerably the time of existence of the reacting elements in the liquid state and it facilitates the participation of the entire nickel in the reaction. The increased time of heat effect enables the other processes to occur more completely.

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“…The concentrated flows of energy [2][3][4], the large plastic deformations [5][6][7][8] and the processes of long-term operation (e.g. in rails) [9,10] refer to such effects.…”

Section: Introductionmentioning

confidence: 99%

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

Романов¹,

Semina²,

Stepikov³

et al. 2017

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

Multi-cycle of AISI 5135 steel modification by irradiation of the “film (Si (0.2 μm) + Nb (0.2 μm))/(AISI 5135 steel) substrate” system with an intense pulsed electron beam

Koval

Ivanov

Шугуров

et al. 2021

J. Phys.: Conf. Ser.

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Steel AISI 5135 surface layer modification carried out by high-cycle high-speed melting of the “film (Si + Nb)/(steel AISI 5135) substrate” system with an intense pulsed electron beam with an impact area of several square centimeters, have been implemented in a single vacuum cycle on the “COMPLEX” setup. The regime of the system “film (Si (0.2 μm) + Nb (0.2 μm))/(steel AISI 5135) substrate” irradiation with an intense pulsed electron beam (20 J/cm2, 200 μs, 3 pulses, 3 cycles) which makes it possible to form a surface layer with high thermal stability have been revealed. This layer is characterized by high hardness, more than 3 times higher than the hardness of AISI 5135 steel in the original (ferrite-pearlite structure) and wear resistance, more than 90 times higher than the wear resistance of the initial AISI 5135 steel. It is shown that the high strength and tribological properties of steel are due to the formation of the hardening phase particles (niobium silicide of Nb5Si3 composition).

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Microstructure and phase composition of a zirconium coating-silicon substrate system treated using high-current electron beams

Cited by 2 publications

References 11 publications

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

Temperature field calculation with allowance for heat of chemical reactions under electroexplosion nickel plating of aluminum

Multi-cycle of AISI 5135 steel modification by irradiation of the “film (Si (0.2 μm) + Nb (0.2 μm))/(AISI 5135 steel) substrate” system with an intense pulsed electron beam

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