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Passive Corrosion Behavior of Alloy 22.

DE2006893919

Publication Date	2006
Personal Author	Rebak, R. B.; Payer, J. H.
Page Count	7
Abstract	Alloy 22 (NO6022) was designed to stand the most aggressive industrial applications, including both reducing and oxidizing acids. Even in the most aggressive environments, if the temperature is lower than 150 F (66 C) Alloy 22 would remain in the passive state having particularly low corrosion rates. In multi-ionic solutions that may simulate the behavior of concentrated ground water, even at near boiling temperatures, the corrosion rate of Alloy 22 is only a few nano-meters per year because the alloy is in the complete passive state. The corrosion rate of passive Alloy 22 decreases as the time increases. Immersion corrosion testing also show that the newer generation of Ni-Cr-Mo alloys may offer a better corrosion resistance than Alloy 22 only in some highly aggressive conditions such as in hot acids.
Keywords	Radioactive waste management Containers Corrosion Aqueous solutions Underground storage Radioactive waste storage Alloy 22
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71G - Corrosion & Corrosion Inhibition 71L - Materials Degradation & Fouling 77F - Radiation Shielding, Protection, & Safety 77G - Radioactive Wastes & Radioactivity
Corporate Authors	Lawrence Livermore National Lab., CA.; Case Western Reserve Univ., Cleveland, OH.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Case Western Reserve Univ., Cleveland, OH. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200711

Passive Corrosion Behavior of Alloy 22.

Passive Corrosion Behavior of Alloy 22.
DE2006893919

Publication Date	2006
Personal Author	Rebak, R. B.; Payer, J. H.
Page Count	7
Abstract	Alloy 22 (NO6022) was designed to stand the most aggressive industrial applications, including both reducing and oxidizing acids. Even in the most aggressive environments, if the temperature is lower than 150 F (66 C) Alloy 22 would remain in the passive state having particularly low corrosion rates. In multi-ionic solutions that may simulate the behavior of concentrated ground water, even at near boiling temperatures, the corrosion rate of Alloy 22 is only a few nano-meters per year because the alloy is in the complete passive state. The corrosion rate of passive Alloy 22 decreases as the time increases. Immersion corrosion testing also show that the newer generation of Ni-Cr-Mo alloys may offer a better corrosion resistance than Alloy 22 only in some highly aggressive conditions such as in hot acids.
Keywords	Radioactive waste management Containers Corrosion Aqueous solutions Underground storage Radioactive waste storage Alloy 22
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71G - Corrosion & Corrosion Inhibition 71L - Materials Degradation & Fouling 77F - Radiation Shielding, Protection, & Safety 77G - Radioactive Wastes & Radioactivity
Corporate Authors	Lawrence Livermore National Lab., CA.; Case Western Reserve Univ., Cleveland, OH.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Case Western Reserve Univ., Cleveland, OH. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200711