| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
A Novel Titanium Alloy for Additively Manufactured Orthopaedic Implants |
| Author(s) |
Enrique Alabort, Alvaro De Diego, Maria Vega Aguirre-Cebrián, Daniel Barba, Roger Reed |
| On-Site Speaker (Planned) |
Enrique Alabort |
| Abstract Scope |
Most existing orthopaedic implants are inherently limited by the mismatch between the stiffness of metals and biological bone tissues. Moreover, most common biomedical alloys raise toxicological concerns. In this paper, alloy design is used to find optimal metallic titanium compositions which are bio-compatible, and which offer inherent lower modulus of elasticity for optimal bone compliance. The alloys were also optimised for additive manufacturing: alloys with low cracking susceptibility and tendency to form fine microstructures were isolated. An optimal alloy composition was then produced and manufactured by selective laser melting. Mechanical experiments on manufactured material under tension and compression reveal the stiffness and strength of the alloy. This work confirms the suitability of the titanium alloy to lower the stiffness of traditional biomedical alloys while being additively manufacturable and strong. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |