| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments
|
| Presentation Title |
Properties and Microstructure Evolution of Water Atomized Stainless Steel 316L Fabricated Using Binder Jet Additive Manufacturing |
| Author(s) |
Peeyush Nandwana, Rangasayee Kannan, Rajendra Kelkar |
| On-Site Speaker (Planned) |
Peeyush Nandwana |
| Abstract Scope |
Stainless steel 316L is an important material relevant to energy sectors like nuclear energy. The near net shaping capability coupled with the versatility to use irregular powders makes binder jet additive manufacturing (BJAM) an attractive option to make energy relevant parts. The ability of BJAM to deposit irregular powders can enable the use of lower cost water atomized powders. This cost advantage is important to leverage the high deposition rates and the scalability potential of BJAM. However, water atomized powders often have higher oxygen content that can impact sinterability and final properties. Here we show that water atomized stainless steel 316L powders can be sintered to >95% density and further densified to >99% density by using hot isostatic pressing (HIP). We also show that the tensile strength is within 10% of stainless steel fabricated using gas atomized powders. The underlying phase transformations during sintering and HIP will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Phase Transformations |