Aging and Phase Stability of Waste Package Outer Barrier

Summers, Tammy S. Edgecumble

United States. Department of Energy. Yucca Mountain Project Office.

关键词: Aging;    Alloys;    License Applications;    Phase Stability;    36 Materials Science;   

DOI  :  10.2172/790318
RP-ID  :  ANL-EBS-MD-000002, Rev. 00, ICN 01
RP-ID  :  NONE
RP-ID  :  790318

美国|英语

来源: UNT Digital Library

【 摘 要 】

This Analysis Model Report (AMR) was prepared in accordance with the Work Direction and Planning Document, ''Aging and Phase Stability of Waste Package Outer Barrier'' (CRWMS M&O 1999a). ICN 01 of this AMR was developed following guidelines provided in TWP-MGR-MD-000004 REV 01, ''Technical Work Plan for: Integrated Management of Technical Product Input Department'' (BSC 2001, Addendum B). It takes into consideration the Enhanced Design Alternative II (EDA II), which has been selected as the preferred design for the Engineered Barrier System (EBS) by the License Application Design Selection (LADS) program team (CRWMS M&O 1999b). The salient features of the EDA II design for this model are a waste package (WP) consisting of an outer barrier of Alloy 22 and an inner barrier of Type 316L stainless steel. This report provides information on the phase stability of Alloy 22l, the current waste-package-outer-barrier (WPOB) material. These phase stability studies are currently divided into three general areas: (1) Long-range order reactions; (2) Intermetallic and carbide precipitation in the base metal; and (3) Intermetallic and carbide precipitation in welded samples.