Creep Rupture Behavior of Laser Powder Bed Fusion Haynes 282 Alloy for Concentrated Solar Power Systems

In concentrated solar power (CSP) systems, certain parts, called receivers, need to experience extremely high temperatures and stress during its operation. Accurately predicting how long these parts will last is very important to ensure the system runs efficiently for a long time. One key area of concern is how well the materials used for the receivers and their welded joints withstand over time. Welding is essential as it connects the receiver to the pipes that carry heat, and it also helps with repairs and maintenance. With more industries using 3D printing (or additive manufacturing), this research focused on testing a material called Haynes 282 (H282), which was made using a specific 3D printing method known as laser powder bed fusion. H282 samples were created in two different directions—horizontal and vertical—to determine if the printing orientation affected their ability to handle heat and stress. The durability of the welded AM and wrought material under the same conditions was also tested. The results showed that H282 made with 3D printing performed just as well as traditionally manufactured materials, regardless of how it was printed. The welded joints also showed strong performance, meaning that the welding process didn’t reduce the material’s ability to withstand high temperatures and stress. These findings suggest that 3D-printed H282 could be a good option for use in high-temperature systems like CSP receivers.