50 keV B<sup>+</sup> ions was implanted to polycrvstalline with 50 keV B<sup>+</sup> to a dose o/ 3x10<sup>1</sup>7 ions/cm<sup>2</sup> at room temperature.The
Mechanical alloying was employed to produce super—saturated solution of Fe<sub>1</sub>-xCu<sub>x</sub> ,whichis virtually immiscible under an equilibrium condi