Abstract
The effect of pulsed irradiation with argons and nitrogen ions on the mechanical properties, morphology, and structure of the surface layers of carbon steel St3 (0.2% C, 0.4% Mn, 0.15% Si, and Fe for balance) has been investigated depending on the rate of dose build-up at an average ion current density of 10, 20, and 40 μA/cm2. It has been established that the fatigue life and microhardness of surface layers increase in the entire studied range of dose build-up rates. This seems to be due to the hardening of the surface layers, which resulted from the generation of radiation defects and the irradiation-dynamic effect of fast ions. The sample irradiated by argon ions at the lowest of the selected dose build-up rates j av = 10 μA/cm2 withstands the largest number of cycles to failure.
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Original Russian Text © V.L. Vorob’ev, P.V. Bykov, V.Ya. Bayankin, A.A. Shushkov, A.V. Vakhrushev, 2014, published in Fizika Metallov i Metallovedenie, 2014, Vol. 115, No. 8, pp. 853–857.
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Vorob’ev, V.L., Bykov, P.V., Bayankin, V.Y. et al. Mechanical properties of carbon steel depending on the rate of the dose build-up of nitrogen and argon ions. Phys. Metals Metallogr. 115, 800–804 (2014). https://doi.org/10.1134/S0031918X14080158
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DOI: https://doi.org/10.1134/S0031918X14080158