Dissimilar Metal Welding and its Allowance in the American Society of Mechanical Engineers Boiler and Pressure Vessel Code
Advanced reactors, such as the high temperature gas-cooled reactor, are being developed to solve current and future energy production needs. These advanced reactor designs may benefit by transitioning components via the use of two different alloys joined via arc welding processes. Historically, dissimilar metal welds have been used in industrial applications to change mechanical properties, […]
800H Weldments and Crack Growth Rates of CGR Alloys
Update on FY24 crack growth rate and 800H weldment testing.
Nuclear Structural Component Relevant Properties of Nickel-Based Alloys Produced via Additive Manufacturing
Idaho National Laboratory initiated examination of nickel-based alloys manufactured via three different additive manufacturing methods for potential applications in nuclear, high temperature structural components. The three methods analyzed included laser powder bed fusion, blown powder laser directed energy deposition, and wire-fed gas metal arc directed energy deposition. With the rapid push towards additive manufacturing, codes […]
Assessment of UTP A 2133 Mn as a Matching Filler Metal for Alloy 800H in Section III, Division 5 Applications
Six alloys are qualified in the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC) for elevated-temperature nuclear components. Due to reactor design alloy restrictions and motivation to improve operational efficiency and plant lifetimes, it is necessary to maximize the usefulness of qualified alloys. One of these alloys is Alloy 800H, which […]
Development of Surveillance Test Articles with Reduced Dimensions and Material Volumes to Support MSR Materials Degradation Management
This report details the efforts toward developing new surveillance test article designs with reduced dimensions and material volumes to support materials surveillance technology development for advanced reactors. Two fabrication methods for the surveillance test articles are described. Welded test articles were fabricated with 316H and A617 materials, and interlocking test articles were fabricated using A709 […]