Characterization of the Resistance of Alloy 22 to Stress Corrosion Cracking.

[摘要] In its current design, the high-level nuclear waste containers include an external layer of Alloy 22. Since over their lifetime, the containers may be exposed to multi-ionic aqueous environments, a potential degradation mode of the outer layer could be environmentally assisted cracking (EAC). The objective of the current research was to characterize the effect of applied potential and temperature on the susceptibility of Alloy 22 to EAC in simulated concentrated water (SCW) using the slow strain rate test (SSRT). Results show that Alloy 22 may suffer EAC at applied potentials approximately 400 mV more anodic than the corrosion potential.

[发布机构] Technical Information Center Oak Ridge Tennessee

[学科分类] 工程和技术（综合）

[关键词] Corrosion resistance;Alloys;Stress corrosion cracking;High level radioactive wastes;Containers