According to a statement from H.C. Starck Fabricated Products Group, "For years, tantalum and tantalum alloys have been extensively used in electronic, chemical processing, and biomedical industries. Process industries involving aggressive, hazardous chemicals require corrosion resistant tantalum alloys. These alloys provide cost-effective, long service life solutions for critical components in severe corrosive environments. The outstanding corrosion resistance of tantalum and tantalum alloys is attributed to a very thin, protective tantalum pentoxide (Ta2O5) film that forms when the metal is exposed to oxidizing conditions. Only when the oxide film is penetrated by a chemical reagent does corrosive attack occur on the underlying metal. Industrial experience has repeatedly shown that when this attack occurs, hydrogen embrittlement rather than metal loss from corrosion is the predominant failure mechanism for tantalum materials."
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