Abstract
It is the general conclusion of all national programs that the development of high-performance reduced-activation structural materials is essential for the successful development of fusion power. In this paper, the experience gleaned from previous programs to develop materials for high temperature structural applications is used to identify and discuss some of the most critical issues that must be addressed in the development of candidate materials for fusion structural applications. Critical issues discussed include radiation-induced solute segregation and implications on phase stability in the development of high-performance alloys/ceramics; the effects of very large amounts of helium on mechanical properties and the implications for alloy design/development; development of high temperature design methodology and incorporation of radiation effects into this methodology; the effects of radiation damage on flow localization, and the implications and approach to control the phenomena; and considerations of mass transfer and corrosion in complex fusion systems.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Journal of Nuclear Materials |
| Volume | 367-370 A |
| Issue number | SPEC. ISS. |
| DOIs | |
| State | Published - Aug 1 2007 |
Funding
The authors would like to acknowledge the many colleagues from the international fusion materials and breeder reactor communities who have made contributions to the current state of knowledge for fusion reactor materials, but are not listed or referenced here due to space limitations. This work was sponsored by the Office of Fusion Energy Sciences, US Department of Energy, under Contract DE-AC05-00OR22725 with UT-Battelle, LLC.