Abstract
Niobium coatings vacuum plasma sprayed under an inert atmosphere onto steel substrates are shown to be dense and free from visible oxide. Electrochemical analysis in deaerated 0.5 M and 4 M hydrochloric acid solutions indicated that vacuum plasma-sprayed niobium coatings are highly resistant to both general and local corrosion. Cyclic voltammetry in deaerated 4 M hydrochloric acid showed no breakdown during the anodic potentiodynamic sweep, behavior similar to that observed for pure niobium foil. The feasibility of applying low-pressure-plasma-sprayed niobium coatings for the protection of steel substrates in highly aggressive hydrochloric acid solutions was established.
| Original language | English |
|---|---|
| Pages (from-to) | 459-469 |
| Number of pages | 11 |
| Journal | Thin Solid Films |
| Volume | 108 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 28 1983 |
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