Creep and Fatigue Characterization of High Strength Alloy Thin Sections in Advanced Carbon Dioxide Heat Exchangers

Brayton Energy and Oak Ridge National Laboratory will examine creep behavior the tendency to deform under mechanical stress in thin-sheet nickel alloys 740H and 282, to see whether they can improve the lifetime of supercritical carbon dioxide (CO2) heat exchangers in high-temperature concentrating solar-thermal power plants. This will provide information about structural characteristics in metals used to build heat exchangers and determine how thick their components should be.