Surface erosion in nc-ZrN/a-ZrCu multilayer films after He irradiation

Углов, В.В.; Abadias, G.; Zlotski, S.V.; Saladukhin, I.A.; Veremei, I.S.

doi:10.1016/j.surfcoat.2022.128547

Cited by 4 publications

(6 citation statements)

References 31 publications

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“…This indicates the formation of amorphous films in the investigated compositional range. The angular position of this peak changes from 37.15 to 41.35º with increasing Cu content from x = 0.45 to x = 0.74, suggesting a decreasing bonding length when Cu atoms substitute from Zr ones [21]. XRD patterns of as-deposited nc-ZrN/a-ZrCu (5 nm/5 nm) and nc-ZrN/a-ZrN (5 nm/10 nm) multilayered films are shown in Fig.…”

Section: Structure and Stress In Nc-zrn/a-zrcu Filmsmentioning

confidence: 96%

“…It is also seen that irradiation with helium ions leads to a decrease in the intensity of the ZrN (111) diffraction peak and an increase in the intensity of the (200) peak. A decrease in the intensity and width of diffraction peaks was revealed, which is associated with surface erosion [21] and stress relaxation. It was found that the ZrN phase is retained at a maximum fluence of 1.1×10 18 cm -2 (Fig.…”

Section: Irradiated Filmsmentioning

confidence: 97%

“…The decrease in the level of compressive stresses at high fluences is associated with the processes of radiation erosion of the surface of multilayer films. In this case, an increase in the copper content in the amorphous layer and the thickness of this layer up to 10 nm lead to an increase in the critical fluence, at which the film is eroded [21]. The latter, in turn, causes a high level of compressive stresses in these films compared to films with a low concentration of copper in the amorphous layer and a thickness of this layer of 5 nm.…”

Section: Irradiated Filmsmentioning

confidence: 99%

“…Before investigating the surface of irradiated films, calculations using SRIM program were performed. For these calculations, the densities of ZrN and ZrCu layers, taken from the XRR investigations were used [21]. The results of SRIM calculations are presented in Table 1, where the projected range of the He distribution, Rp, is reported.…”

Section: Irradiated Filmsmentioning

confidence: 99%

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Influence of helium ion irradiation on the stress evolution in nc-ZrN/a-ZrCu multilayered films

Углов¹,

Zlotski²,

Abadias³

et al. 2022

8th International Congress on Energy Fluxes and Radiation Effects

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The paper presents the results of stress evolution in nc-ZrN/a-ZrCu multilayered films with different Cu concentration (from 44.6 to 73.8 at.%) and thickness of amorphous layer ZrCu (5 and 10 nm) after He2+ (40 keV and fluences from 5.0´1016 to 1.1´1018cm-2) ion irradiation. It has been found that irradiation with helium ions leads to a decrease in the level of compressive stresses. In this case, for multilayer films with an amorphous layer thickness of 5 nm at a dose of more than 9.0´1018 cm-2, the stresses decrease to zero and become tensile. The decrease in the stress level is mainly associated with the effects of radiation erosion of multilayer films.

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Section: Structure and Stress In Nc-zrn/a-zrcu Filmsmentioning

confidence: 96%

Section: Irradiated Filmsmentioning

confidence: 97%

Section: Irradiated Filmsmentioning

confidence: 99%

Section: Irradiated Filmsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of helium ion irradiation on the stress evolution in nc-ZrN/a-ZrCu multilayered films

Углов¹,

Zlotski²,

Abadias³

et al. 2022

8th International Congress on Energy Fluxes and Radiation Effects

Self Cite

View full text Add to dashboard Cite

show abstract

“…The formation of gas-filled bubbles during high-dose helium irradiation is associated with the high mobility of helium, as well as its low solubility, which makes it possible for it to agglomerate in the voids of the crystal lattice upon implantation into the near-surface layer, followed by accumulation, leading to deformation distortion and swelling [26]. In this case, as shown in several works [27,28], the critical irradiation fluences at which the formation of helium bubbles is observed in materials are 10 17 -5 × 10 17 ion/cm 2 , which was the motivation for choosing the irradiation range during this experiment. Based on the obtained data on the simulation of ionization losses, the values of atomic displacements in the near-surface layer were calculated depending on the irradiation fluence, which characterizes the degree of deformation of the damaged layer during the radiation damage accumulation.…”

Section: Irradiation Of Samples and Simulation Of Radiation Damagementioning

confidence: 96%

Study of the Mechanisms of Radiation Softening and Swelling upon Irradiation of TiTaNbV Alloys with He2+ Ions with an Energy of 40 keV

et al. 2023

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This paper presents simulation results of the ionization losses of incident He2+ ions with an energy of 40 keV during the passage of incident ions in the near-surface layer of alloys based on TiTaNbV with a variation of alloy components. For comparison, data on the ionization losses of incident He2+ ions in pure niobium, followed by the addition of vanadium, tantalum, and titanium to the alloy in equal stoichiometric proportions, are presented. With the use of indentation methods, the dependences of the change in the strength properties of the near-surface layer of alloys were determined. It was established that the addition of Ti to the composition of the alloy leads to an increase in resistance to crack resistance under high-dose irradiation, as well as a decrease in the degree of swelling of the near-surface layer. During tests on the thermal stability of irradiated samples, it was found that swelling and degradation of the near-surface layer of pure niobium affects the rate of oxidation and subsequent degradation, while for high-entropy alloys, an increase in the number of alloy components leads to an increase in resistance to destruction.

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Study of the Effectiveness of Corrosion Resistance Growth by Application of Layered AlN–TiO2 Coatings

Moldabayeva,

Kozlovskiy,

Kuldeyev

et al. 2024

Coatings

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The work is devoted to the study of the use of AlN–TiO2 coatings as protective materials against corrosion and natural aging, as well as a rise in wear resistance of the steel surface under long-term mechanical influences. The choice of oxy-nitride coatings obtained by magnetron sputtering by layer-by-layer deposition of layers of aluminum nitride and titanium oxide with layer thicknesses of the order of 50 nm and 100 nm as objects of study is due to their high resistance to external influences, which can have a significant impact on growth in the resistance to degradation processes associated with hydrogenation during the operation of steel structures. During determination of the hydrophobicity/hydrophilicity of AlN–TiO2 coatings, it was found that the applied coatings, regardless of the conditions for their preparation, have hydrophobic properties (the contact angle is ~125–130°), which are preserved both during corrosion tests (except for TiO2 coatings, for which the change in the contact angle after corrosion tests is ∆ ~ 10°) and when modeling natural aging processes. During the tribological tests of coating samples, it was found that a growth in the number of spray layers (when alternating them) leads to a rise in wear resistance, both in the case of the initial samples and for samples subjected to corrosion in a model solution of 0.1 M NaCl and when simulating natural aging processes.

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Surface erosion in nc-ZrN/a-ZrCu multilayer films after He irradiation

Cited by 4 publications

References 31 publications

Influence of helium ion irradiation on the stress evolution in nc-ZrN/a-ZrCu multilayered films

Influence of helium ion irradiation on the stress evolution in nc-ZrN/a-ZrCu multilayered films

Study of the Mechanisms of Radiation Softening and Swelling upon Irradiation of TiTaNbV Alloys with He2+ Ions with an Energy of 40 keV

Study of the Effectiveness of Corrosion Resistance Growth by Application of Layered AlN–TiO2 Coatings

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