About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing for Energy Applications V
|
Presentation Title |
In-situ Embedment and High Temperature Testing of Commercial Thermocouples with Directed Energy Deposition |
Author(s) |
Luis Nuņez, Piyush Sabharwall, Isabella J van Rooyen |
On-Site Speaker (Planned) |
Luis Nuņez |
Abstract Scope |
Advanced nuclear reactor systems with inherent passive safety and remote monitoring capability are pushing the limit on available sensor technologies. Additive manufacturing offers new techniques with the design flexibility to allow in-situ sensor embedment that can improve the smart manufacturing, real-time monitoring, and performance of these systems. This study focuses on investigating the feasibility of in-situ sensor embedment using directed energy deposition (DED). Type K thermocouples are embedded into 316L stainless steel samples using two different configurations (exposed and embedded tips) and two designs (e.g., flush to substrate) within a DED base. Samples are analyzed via in-situ measurements and high-temperature performance validation tests at 350 and 900ēC. An additional optimization sample is fabricated using a surrogate thermocouple to improve tolerances and the embedment process. Results from optimization of tolerances, porosity, gaps between the sensor and base, and junction contact for the sensor are presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Temperature Materials, Characterization |