Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9803500 | Journal of Alloys and Compounds | 2005 | 5 Pages |
Abstract
Bulk metallic glasses of Zr65âxHfxCu17.5Ni10Al7.5 with Hf = 0 and 1 at.% and bulk metallic glass composite with Hf = 2 at.% were prepared by copper mould casting. The corrosion behavior of the alloys obtained were investigated in 3% NaCl, 1N H2SO4, and 1N HCl solutions, respectively, by electrochemical measurements. It is found that all three alloys are spontaneously passivated in 3% NaCl and 1N H2SO4 solutions, but exhibit active dissolution in 1N HCl solution. The single amorphous phase of BMG with 1 at.% Hf shows excellent corrosion resistance in 3% NaCl solution due to the structural and chemical homogeneousness of the amorphous phase and to the effect of Hf on promoting the formation of protective film.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
L. Liu, C.L. Qiu, H. Zou, K.C. Chan,