The microhardness of the initial specimens of SAV-1 avials was experimentally investigated. Modification of this mechanical characteristic as a result of alloy irradiation in the channels of a research nuclear reactor WWR-SM was studied. The nonlinear pattern of material hardening after irradiation at low fluence rates (1015 – 1018 neutron/cm2) was revealed. The radiation effect of avial microhardness variations is established to be a certain function of irradiation doses and indentation loads. The possible reasons of an increase in hardness of irradiated specimens are discussed. The radiation-induced hardening of aluminum alloys is assumed to be determined by generation of point flaws and dislocations, blocked by defects and interstitial phase decay products.
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Translated from Problemy Prochnosti, No. 1, pp. 153 – 158, January – February, 2011.
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Abdukadyrova, I.K., Tadzhibaev, D.P. Effect of nuclear radiation on the microhardness of SAV-1 avials. Strength Mater 43, 109–112 (2011). https://doi.org/10.1007/s11223-011-9274-0
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DOI: https://doi.org/10.1007/s11223-011-9274-0