Electrochemical and corrosion protection properties of ion implanted thin films

✍ Scribed by W. Ensinger; G.K. Wolf

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 579 KB
• Volume: 39
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(94)e0031-t

✦ Synopsis

Abetract-Ion

rmplantation offers the posslhhty to alloy the surface-near reaon of metals wrth noble metals whch increase the corrosion resistance of the system Due to the llmrted entrance depth of ions mto solids, the moddied zone 1s generally very thm The observable effects are therefore usually not long-lasting because the resistant alloy IS consumed too fast However, for speaal corrososlon condrtlons a long-term protection may be obtamed Tantalum suffers from hydrogen embnttlement when it corrodes m hot concentrated mineral auds, and t&unum and stamless steel from active corrosion with high dlssolutlon rates m activating mineral acids Electrochernxal and mmerslon tests show that implantation of electrocatalytlcally achve noble metals such as platinum and palladium may lead to an effective protection over a longer duration of tune For companson, results on umform corrosion of iron m sbghtly ac&c media are also discussed