| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Biomaterials for 3D Printing of Scaffolds and Tissues
|
| Presentation Title |
Fabrication of Hierarchically Porous 316L Stainless Steel Scaffolds by Freeze Casting and 3D-printed Sacrificial Templating Techniques |
| Author(s) |
Cheng Tsai, Kuan-Cheng Lai, Haw-Kai Chang, Po-Yu Chen |
| On-Site Speaker (Planned) |
Cheng Tsai |
| Abstract Scope |
The hierarchical and lightweight structure is a strategy commonly employed by living creatures to adapt to the environment. In recent years, porous alloys with varying scales of pores (macro-, micro-, nano-) and hierarchical structures have drawn growing attention in materials research fields owing to their unique properties. In this study, 316L stainless steel was selected as it is one of the commonly used metallic biomaterials due to its good biocompatibility, low price, excellent corrosion resistance, and proper strength. By integrating freeze casting method and stereolithography (SLA) additive manufacturing technology, a dual templating process was developed to fabricate hierarchical millimeter/micrometer scale lightweight metal-/alloy-based scaffolds with proper compressive mechanical properties and tunable functional applicability. The porosity and elastic modulus of hierarchical porous 316L stainless steel scaffolds are in the range of 62-65% and 370-460 MPa, respectively. The novel lightweight, hierarchically porous 316L stainless steel scaffolds can be potentially applied in biomedical fields. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |
| Keywords |
Biomaterials, Iron and Steel, Other |