| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials for Biomedical Implants
|
| Presentation Title |
K-1: Case Hardening of a Biomedical Cobalt- and Nickel-Free Stainless Steel |
| Author(s) |
Stephane A.J. Forsik, Logan Smith, Gaurav Lalwani, Mario E Epler |
| On-Site Speaker (Planned) |
Stephane A.J. Forsik |
| Abstract Scope |
Biodur® 108 (ASTM F2229/UNS S29108) is an essentially nickel- and cobalt-free austenitic stainless steel approved by the Food and Drug Administration (FDA) for implantable orthopedic and orthodontic devices, and high-strength surgical instrumentation. Cold-worked Biodur 108 has tension properties comparable with those of ASTM standard F799 for cobalt-base CoCrMo alloy (827 MPa Ys, 1172 MPa UTS, 12 El%, 12 RA%). Low-pressure carburizing forms a 1 mm case layer and increases carbon from 0.10 wt.% to close to 1 wt.% at the surface, accompanied with a hardness increase from 300 Hv to 550 Hv. Further optimization of the case hardening parameters and characterization of the surface wear and corrosion resistance are underway but these preliminary results suggest the feasibility of using Biodur 108 as a Co-free alternative solution for articulating orthopedic applications such as total hip or knee replacements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Iron and Steel, Surface Modification and Coatings |