|About this Abstract
||MS&T23: Materials Science & Technology
||Interface-mediated Phenomena in Structural Materials
||Gradation of Additive Manufactured Polymer-Metal Interfaces for Increased Toughness
||Carlos Daniel Mora Salcedo, Mathew Kuttolamadom
|On-Site Speaker (Planned)
||Carlos Daniel Mora Salcedo
This work investigates the use of geometry-based interlocking approaches to enhance toughness in additive manufactured polymer-metal interfaces under impact-type combined loading scenarios. A graded lattice was manufactured onto the metallic surface to create a mechanical interlock at the mesoscale and improve interfacial toughness between a polymer 3D printed over a previously 3D printed metal surface. The study investigated the effects of various process parameters such as base metal temperature and flow rate, which play a crucial role in the interfacial interlocking between the surfaces. The results showed that tailoring the graded surface features for manufacturability and loading state significantly improved the toughness of the interface. This approach has the potential to be applied in situations where strong interfacial interlocks between dissimilar material surfaces are necessary. Overall, the study proposes an effective solution for improving the toughness of the interface between polymer and metal substrates under various loading states and rates.