Bulg. J. Phys. vol.25 no.1-2 (1998), pp. 056-061

Metal Ions Implantation in Rapidly Solidified Aluminium Alloys

V. Dimova1, D. Danailov1, T. Markov1, G. Zlateva1, A. Djakov2
1Institute of Metal Science, Bulgarian Academy of Sciences, 67 Shipchensky Prohod Blvd, 1574 Sofia, Bulgaria
2Institute of Nuclear Research and Nuclear Energy, 72 Tsarigradsko Chaussee Blvd, 1784 Sofia, Bulgaria
Abstract. The influence of heavy ions (zinc, iron) implantation on the structure of two rapidly solidified aluminium alloys — Al-1 wt.% Cu and Al-1 wt.% Zn was investigated by means of transmission electron microscopy, X-ray analysis and magnetic thermoanalysis. All implantations were carried out with 60 keV ions at doses ranging from 1 × 1017 to 1 × 1018 cm-2. Bombardment with Zn ions endamages mainly the θ-phase precipitate in Al-4 wt.% Cu alloy. Amassing of implanted Fe ions is observed in the near-to-surface region in the two examined alloys and an amorphous layer weakly transparent for the electron beam forms at doses greater than 8 × 1017 cm-2.

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