The influence of Al content on glass forming ability and magnetic properties of high Ms nanocrystalline FeSiBPCuAl alloy

Al content on the influence of glass forming ability and magnetic properties of nanocrystalline (Fe83.3Si4B8P4Cu0.7)(100)-Al-x(x) (x = 0 similar to 1.25 at.%) alloy was investigated in our work. Experimental results show that addition of 0.5 at.% Al is effective in improving the glass forming ability of Al-free alloy and thus amorphous precursor prepared by industry-grade raw materials can be obtained. Meanwhile, the addition of Al is beneficial in decreasing coercive force and maintaining high saturation magnetization above 180 emu/g, which makes Fe-Si-B-P-Cu-Al alloy a promising soft magnetic material in potential applications. (C) 2010 Elsevier B.V. All rights reserved.