About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Developments in Advanced Nuclear Structural Materials
|
| Presentation Title |
Enhancement of High Temperature Alloy Service Capabilities |
| Author(s) |
James F. Stubbins |
| On-Site Speaker (Planned) |
James F. Stubbins |
| Abstract Scope |
Advanced nuclear systems are challenged by materials performance at elevated temperatures where time-dependent deformation, formation of deleterious phases during extended aging, exposures to corrosive atmospheres and irradiation restrict structural service lives. Overcoming these restrictions for extended service at elevated temperatures under challenging service environments is key to the commercial viability of these systems consistent with safe operation. Elevated temperature service, beyond current ASME code boundaries, would enable enhanced system efficiency and enable direct electricity conversion cycles and thermal-chemical processing. This talk will consider the means to enhance materials’ high temperature service performance and ways to reconsider restrictions based on ASME code compliance for extend component lives and higher component temperatures We will concentrate on the alloys currently approved for elevated temperature structural service and methodologies to expand their service limits. In particular, the interest is to extend viable service temperatures beyond the current 650C de facto service limit. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, Nuclear Materials |