Tantalum Materials in the CPI for the Next Millennium

摘要

Tantalum materials have been used in the Chemical Processing Industry (CPI) for over 60 years and continue to be important materials of construction. This paper will discuss tantalum and Ta-2.5W alloy applications that have evolved over the past century to current day applications. Traditional upper limits for corrosion and hydrogen embrittlement resistance established for pure tantalum will be compared to new upper limits for the Ta-2.5W alloy in HC1, NaOH and H_2SO_4 acid media. Also illustrated, will be test data showing the pronounce affect of coupling platinum to tantalum materials, and their contributions on establishing new upper boundaries for tantalum materials for the CPI.