Same as for Titanium and Niobium. The high resistance against corrosion is given by the spontaneous built and natural oxide layer on Tantalum. It's thickness is some few microns only and is built first quick then slowly (exponentially decreasing).
By galvanic anodizing this layer can be formed perfect. Only Anodurit(R) has the capability to build a crystalline and fully covering oxide layer on Tantalum. This oxide layer on Tantalum is protecting even better against corrosion and causes less friction and galling.
Despite of the much higher Voltage. Also Tantalum can be anodized. Grey as Type 2 or colored as Type 3. No Sand Blasting / grit blast. No pickling. True to size. Surface Structure remains originally!
Di, 10. Sept. 2013
|2. 5. 19||T4M Halle 9 Stand D30.4|
|8. 11. 18||Anodurit blau gegen Verunreini|
|27. 11. 17||CleannMed Präsentation|
|18. 4. 16||Oberflächen & Schichten 2016|
|19. 8. 15||Prozesssicherheit - optimiert.|