Electrochemical Behavior of Alloy 22 IN 5M CaCl2.

Ilevbare, G. O.

Technical Information Center Oak Ridge Tennessee

关键词: Alloys;    Electrochemical behavior;    Corrosion resistance;    Radioactive waste disposal;    High level radioactive wastes;   

RP-ID  :  DE200515013492

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This work is in support of the design and construction of the potential geological nuclear waste repository in Yucca Mountain Nevada. Therefore, the environmental considerations of importance are those pertaining to the design and construction of high-level radioactive waste packages for the Yucca Mountain Project (YMP). The design of the waste package as stipulated in the License Design Selection Report, calls for a double walled canister. The proposed material for the outer barrier of the waste package is Alloy 22 (Unified Numbering System (UNS) N06022), the corrosion resistant material (CRM). Alloy 22 is expected to provide a reasonable level of 'kinetic' immunity from general and localized corrosion for the waste packages under the prevailing environmental condition in Yucca Mountain. Kinetic immunity would ensure a low rate of passive dissolution, and negligible chance of generating damaging pits or crevices. The proposed material for the inner barrier of the waste package is stainless steel 316. The primary role of this layer is structural reinforcement.