Machines. Technologies. Materials.
Vol. 19 (2025), Issue 9, pg(s) 353-355

MATERIALS

Effect of electromagnetic radiation in space on aluminum alloy AA7075

  • 1 Space Research and Technology Institute - Bulgarian Academy of Sciences, Sofia, Bulgaria

Abstract

Electromagnetic radiation in space presents a significant challenge to the durability of aluminum alloys used in spacecraft construction. This study analyzes the effects of ionizing radiation (gamma rays, cosmic rays, solar particles), ultraviolet and solar radiation, electromagnetic pulses (EMP), and extreme temperature fluctuations on a novel composite material based on AA7075 (B95) aluminum alloy. The results demonstrate that prolonged exposure of the material in outer space (28 months) leads to structural changes and alterations in mechanical properties. To ensure the reliability of the results, the space-exposed samples were compared with reference samples stored under terrestrial conditions.

Keywords

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