Corrosion Database for SCWR Development

Abstract

The development of the Gen IV CANDU-Supercritical Water Reactor (SCWR) requires the identification and evaluation of candidate materials that can be used for in-core and out-of-core components. One initial goal of the Materials Database project under the Canadian National Gen IV program is to identify a short-list of candidate materials for longer-term testing. A large amount of data is now available on materials properties (e.g, corrosion, creep) under SCWR conditions (for temperature between 374 and 732 degrees C, P = 35 MPa). To facilitate the collection and assessment of these data, a materials database has been developed by AECL and MTL. This paper describes the development of this database, outlining basic data requirements and design. Illustrations include the functional view of the database, query tables and user interface plots. Examples of corrosion rate assessments of some 3XX stainless steels and of Alloy 800H under various test conditions will be presented. The project is still in an early stage and development is underway, including data collection and Visual Basic programming. Even at this preliminary stage, the database is proving to be a valuable tool for the corrosion evaluation of alloys.