EFFECTS OF CU ON THE CRYSTALLIZATION BEHAVIOR OF AMORPHOUS FE71CR15MO4B10

Following the approach of earlier studies which have demonstrated that nanocrystalline microstructures can be produced in soft magnetic allo ys through the addition of one percent of Cu to Fe based amorphous pre cursor alloys, it is demonstrated that substantial grain refinement ca n be produced in alloys of interest for structural applications. Grain sizes of approximately 50 nm were produced in the alloy Fe70Cr15Mo4B1 0Cu1. Such grain sizes should permit superplastic consolidation of pow der or flake at reasonable rates with moderate die pressures at temper atures in the vicinity of 650 degrees C.