[en] AES and SIMS studies have been carried out on chemical reactions induced by 0.5-4 keV D₂⁺, N₂⁺, CO⁺, and CO₂⁺ ion beams on an Al surface. D₂⁺ impact on Al foils in an ultrahigh vacuum or in a D₂ atmosphere produces secondary ions, AlD⁺, AlD₂⁺ and Al₂D⁺, in addition to Al⁺ and Al₂⁺. These ions are also produced by Ar⁺ impact on Al foils in a D₂ atmosphere. Results obtained on their yields suggest that these D-atom containing secondary ions are produced from aluminium deuterides formed by successive chemical reactions induced by D₂⁺. The Al surface bombarded with N₂⁺ was covered with AlN completely or partially, depending on the impact energy of N₂⁺. The Al surface partially covered with AlN was found to undergo rapid, complete oxidation when exposed to O₂ gas. The results obtained for CO⁺ and CO₂⁺ impact showed that CO⁺ impact produces Al₄C₃ selectively, while CO₂⁺ impact produces both Al₄C₃ and aluminium oxide. (orig.)