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Monday, March 17, 2008 - 3:55 PM
Convention Center, Second Level, 220 (Ernest N. Morial Convention Center)
Corrosion Testing of Nickel and Titanium Alloys for Nuclear Waste Disposition
Extensive testing has been performed at the Lawrence Livermore National Laboratory (LLNL) to determine the corrosion characteristics of nickel (Ni)-based alloys such as Alloy 22 (N06022) and three titanium alloys. The studies focused in three major areas: (a) Immersion tests at the long-term corrosion test facility (LTCTF), (b) the determination of the corrosion potential (Ecorr), and (c) the measurement of the repassivation potential. A review summary of the previously published results from LLNL in the three mentioned areas is presented. Examination of specimens removed from the LTCTF yielded significant information regarding the general, localized and stress corrosion cracking resistance of Alloy 22, four other nickel-based and three titanium alloys. Results from the Ecorr studies were significant but not conclusive. Current Ecorr results mainly opened areas for future research. Repassivation potential studies helped understanding the role temperature, chloride concentration and inhibitive effect of nitrate but other areas such as fabrication effects still need to be investigated in more detail. A list of suggested future studies in the three areas mentioned above is also offered.
See more of Research Topical Symposium - Corrosion in Nuclear Waste Systems
See more of Research Topical Symposium
See more of The CORROSION 2008 Conference and Expo (March 16-20, 2008)
See more of Research Topical Symposium
See more of The CORROSION 2008 Conference and Expo (March 16-20, 2008)