American Nuclear Society
Home

Home / Publications / Journals / Nuclear Technology / Volume 66 / Number 2

Creep Behavior of Materials for High-Temperature Reactor Application

Klaus Schneider, Walter Hartnagel, Peter Schepp, Bernhard Ilschner

Nuclear Technology / Volume 66 / Number 2 / August 1984 / Pages 289-295

C.2. Creep Property / Status of Metallic Materials Development for Application in Advanced High-Temperature Gas-Cooled Reactor / Material / dx.doi.org/10.13182/NT84-A33432

Materials for high-temperature gas-cooled reactor (HTGR) application are selected according to their creep behavior. For two alloys—Incoloy-800 used for the live steam tubing of the thorium high-temperature reactor and Inconel-617 evaluated for tubings in advanced HTGRs—creep curves are measured and described by equations. A microstructural interpretation is given. An essential result is that nonstable microstructures determine the creep behavior.