Abstract

The Al86Ni9La5 amorphous ribbons were annealed at 503 K for different time to obtain partially crystallized alloys with the different volume fractions of -Al phase, and the effect of the crystallization extent on the electrochemical behavior of the ribbon was investigated in 0.01 M NaCl solution. The results show that the corrosion resistance of the partially crystallized ribbons is higher than that of the as-spun ribbon with the fully amorphous structure, and the corrosion resistance of the partially crystallized alloy is strongly dependent on the volume fraction of -Al phase. The partially crystallized ribbon containing about 20 vol% -Al phase exhibits the highest corrosion resistance. © 2010 Elsevier B.V. All rights reserved.

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