CORROSION INVESTIGATIONS OF NANOCRYSTALLINE IRON-BASED ALLOY

Corrosion resistance investigations of nanocrystalline Fe73.5Cu1Nb3Si1 3.5B9 alloy compared to its amorphous counterpart were carried out. Lo w-temperature crystallization based on the;annealing of amorphous tape s was used to obtain a nanocrystalline structure. The influence of hea t treatment on the alloy structure, mechanical properties and corrosio n resistance in H(2)So(4) and HCl solutions was investigated. Based on the parameters taken on as a criterion of corrosion resistance, it wa s found that nanocrystalline tapes have a higher corrosion resistance than their amorphous counterpart. (C) 1998 Elsevier Science S.A. All r ights reserved.