About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications V
|
| Presentation Title |
Irradiation Response and Mechanical Property Changes of Conventionally and Additively Manufactured 316L Stainless Steels |
| Author(s) |
Lin Shao |
| On-Site Speaker (Planned) |
Lin Shao |
| Abstract Scope |
Our recent studies on irradiation responses and mechanical properties of AM 316L stainless steels were reviewed. The major findings include: (1) printing-introduced large pores contain amorphous cores. The pore edges develop either island-like segregation or layered shell-like structures; (2) residual stress can be effectively removed by applying annealing; (3) proton irradiation induces complicated dislocation networks and short-range ordering around dislocations; (4) deformation has a transition from dislocation gliding to twinning as a function of damage levels; (5) the deformation mechanism change is caused by irradiation hardening which allows the yielding stress high enough to exceed the required shear stress for twinning nucleation and activation; (6) twinning benefits the homogeneity in plasticity flow; (7) both high angle grain boundaries and cell walls exhibit defect sink property, but high angle grain boundaries are more efficient; (8) the irradiation-induced swelling in AM variants is systematically less than the wrought counterpart. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Characterization |