Abstract
The effect of Ni on the electrochemical corrosion behavior of Zr-Cu-Al amorphous alloys in 3.5% NaCl neutral solution was investigated by potentiometric polarization and electrochemical impedance spectroscopy. The results show that the Zr55Cu30Ni5Al10 amorphous alloy containing Ni element has better corrosion resistance than Zr55Cu35Al10 amorphous alloy in NaCl solution. The Zr-Cu-Al amorphous alloys generate pitting corrosion in NaCl solution, and the circular corrosion pit is filled with foam-like holes. Compared with the elemental distribution of Zr-Cu-Al amorphous alloys before and after corrosion, the alloying elements are selectively dissolved because of Cl-. Amorphous alloys containing Ni elements form a dense passivation film, which inhibits the selective dissolution of metal elements, thereby improving corrosion resistance. The results can provide reference for the composition design and application of Cl- resistant amorphous alloys.
| Translated title of the contribution | Effect of Ni on Corrosion Behavior of Zr-Cu-Al Amorphous Alloys in NaCl Solution |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 712-718 |
| Number of pages | 7 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 51 |
| Issue number | 2 |
| State | Published - Feb 2022 |