Role of Cr Element in Highly Dense Passivation of Fe-Based Amorphous Alloy.

ABSTRACT: The effect of the Cr element on the corrosion behavior of as-spun Fe_72-xCr_xB_19.2Si_4.8Nb₄ ribbons with x = 0, 7.2, 21.6, and 36 in 3.5% NaCl solution were investigated in this work. The results show that the glass formability of the alloys can be increased as Cr content (c_Cr) is added up to 21.6 at.%. When c_Cr reaches 36 at.%, some nanocrystals appear in the as-spun ribbon. With increasing c_Cr content, the corrosion resistances of as-spun Fe-based ribbons are continually improved as well as their hardness properties; during the polarization test, their passive film shows an increase first and then a decrease, with the highest pitting potential as c_Cr<

SUBMITTER: Song Z 

PROVIDER: S-EPMC10608733 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature