2010
DOI: 10.1149/1.3298948
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Electrochemical Etching of NiTi Alloy in a Neutral Fluoride Solution

Abstract: Electrochemical etching of NiTi alloy in a pH 6 fluoride solution is proposed as a convenient alternative to chemical etching in oxidizing HF media. Anodization produces protons at the electrode surface, and local acidification increases the concentration of HF that efficiently dissolves the surface oxides, promoting a sustained dissolution current that decreases with increasing mass-transfer rate. The voltammetric pattern includes a "pseudoplateau" at low potentials, in which only a metal dissolution takes pl… Show more

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“…Nevertheless it should be emphasized that electropolishing is not the only step or only way to achieve better NiTi surfaces. There are various methods such as electrochemical etching in neutral fluoride solutions, passivation, plasma treatment, selective surface oxidation and nitridation, or oxochloridation…”
Section: Resultsmentioning
confidence: 99%
“…Nevertheless it should be emphasized that electropolishing is not the only step or only way to achieve better NiTi surfaces. There are various methods such as electrochemical etching in neutral fluoride solutions, passivation, plasma treatment, selective surface oxidation and nitridation, or oxochloridation…”
Section: Resultsmentioning
confidence: 99%