HARDENING OF RAPID SOLIDIFICATION Al-Fe-V-Si ALLOY EXPOSED AT ELEVATED TEMPERATURE

摘要

Rapidly solidified(RS) FVS0812 alloy powder was obtained by means of multi-stage RS powder-making device. The effect of elevated temperature (200 ～ 500℃ ) on the mechanical properties of the cold deformed specimens was investigated. The results showed that the strength increases significantly after being exposed at 200 ～ 500℃ . This abnormal behaviour can be attributed to the clusters of the transition metal solute—iron in aluminum matrix, forming during the hot deformation or heat treatment.