| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid-State Diffusion Bonding of Metals and Alloys
|
| Presentation Title |
Modeling Process-Structure-Property Relationship in Diffusion Bonded 316H Stainless Steel Microstructure using Phase-Field and Crystal Plasticity Methods |
| Author(s) |
Sagar Bhatt, Rui Wang, Fei Gao, Mark Messner |
| On-Site Speaker (Planned) |
Sagar Bhatt |
| Abstract Scope |
Upcoming advanced nuclear reactors and concentrating solar power plants will use efficient power cycles such as sCO2 Brayton cycle which require compact heat exchangers for their high thermal efficiency. Type 316H stainless steel is one of the qualified materials for use in such cases through Section III, Division 5 of the ASME Boiler & Pressure Vessel Code. Diffusion bonding is a promising technique for manufacturing these heat exchangers but there is limited work where a good bond has been reported in literature for 316H. In this work, we model the diffusion bonding process using a phase-field model to generate polycrystals under various processing conditions which are then subjected to creep deformation simulations using crystal plasticity finite element method. Through this work we aim to establish a process-structure-property relationship by linking desirable mechanical properties to processing conditions, reducing the vast processing space and thus helping accelerate the bonding trials and experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Computational Materials Science & Engineering, Joining |