About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Materials Design and Alloy Development IV: Rapid Development
|
Presentation Title |
Multi-metal 316L SS+Cu with Tailored Thermal Conductivity Manufactured via Laser Powder Bed Fusion |
Author(s) |
Saereh Mirzababaei, V. Vinay K. Doddapaneni, Kijoon Lee, Chih-hung Chang, Brian K. Paul, Somayeh Pasebani |
On-Site Speaker (Planned) |
Saereh Mirzababaei |
Abstract Scope |
Development of multi-metal with tailored thermal properties via additive manufacturing is investigated in this study. Ball milling of 316L and pure Cu powder followed by laser powder bed fusion process was adopted here. Thermal conductivity of additively manufactured coupons was experimentally measured using a laser flash method. The effect of porosity and volume fraction of Cu on effective thermal conductivity of the metal composite material was evaluated. Results revealed that porosity adversely affect the effective thermal conductivity of 316L+Cu metal composite. Effective thermal conductivity of metal composite increased with increasing volume fraction of Cu. For example, effective thermal conductivity of 316L matrix was enhanced by 250% at 300°C with addition of 60vol% Cu, without a significant sacrificing of mechanical properties, holding ~80% of microhardness of wrought 316L. Post processing such as hot isostatic pressing can improve the density and microstructure of samples, leading to higher enhancement in thermal conductivity (>500%). |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Composites, Copper / Nickel / Cobalt |