[en] Powder metallurgy (P/M) aluminum alloys with high mechanical strengths have been developed by taking advantage of rapid solidification (RS). The improved strengths result from structural modifications such as reduction of segregation, refinement of grain size and increase in solid solubility limit which mainly depend on the amount of undercooling of melt. To produce crystalline alloys with a refined structure, few approaches are considered: the crystallization of an amorphous alloy, the control of cooling rate from melt and the selection of optimum composition for glass-forming alloys. However, these methods are generally attended with a disadvantage for embrittlement. Recently, it has been found that Al-based amorphous alloys exhibiting high tensile strength and good bending ductility form by liquid quenching in the Al-Ln-TM (Ln: lanthanide metal, TM: transition metal) system. Furthermore, the consolidation of the amorphous alloy powders to a bulk amorphous alloy has also been achieved by warm extrusion. The first aim of this paper is to examine the effect of alloy composition on the strength and ductility of crystalline compacts produced by extrusion of rapidly solidified powders in the Al-Ni-Ce-TM(TM:Ti, Mn, Fe, Co, Cu, Zr) systems where an amorphous phase is formed by melt spinning. The second is to investigate whether or not the structural refinement by using glass-forming alloys is useful to develop high-strength P/M aluminum alloys