Acceleration of volume decomposition of supersaturated Al+4 wt.% Cu solid solution under irradiation with Ar+ ions


Acceleration of volume decomposition of supersaturated Al+4 wt.% Cu solid solution under irradiation with Ar+ ions

Gushchina, N. V.; Ovchinnikov, V. V.; Mücklich, A.

Effect of irradiation with Ar+ ions on the decomposition processes of model precipitation-hardening alloy Al+4wt.% Cu has been studied. Using X-ray diffraction, high-resolution electron microscopy methods and micro hardness measurements, it was established, that, already at low temperatures (T<60°C), ion irradiation causes accelerated decomposition of solid solution, with precipitation of θ′- and θ-phase particles at a depth greatly exceeding the Ar+ ions projected range.

Keywords: Aluminum alloy; Ion irradiation; Long-range effect; Supersaturated solid solution decomposition

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Publ.-Id: 23166