|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Metal-Matrix Composites Innovations, Advances and Applications: An SMD Symposium in Honor of William C. Harrigan, Jr.
||Designing New Self-healing Metallic Materials and Self-healing Metal Matrix Composites
||Volkan Kilicli, Marjan Nezafati, Nathan Salowitz, Pradeep Kumar Rohatgi
|On-Site Speaker (Planned)
||Pradeep Kumar Rohatgi
Self-healing materials are emerging as an important set of engineering materials but the self-healing metallic materials and metal-matrix composites (MMCs) have received relatively limited attention. The main experimental approaches have included (a) aging precipitation in alloys to close cracks, (b) incorporation of shape memory alloy fibers in the matrix, and (c) encapsulation of crack healing agents in microballoons or microcapsules. Much of the previous work has relied on empirical experiments synthesizing small self-healing samples. In this presentation, we consider the issues related to thermodynamics, mechanics, kinetics, and mass transport to develop predictive capabilities in designing self-healing microstructures. Computational fluid dynamics analysis was employed to understand the crack healing mechanism through the flow of self-healing liquid and will be discussed. The current work also presents a critical analysis for recent progress on the atomistic molecular dynamics (MD) computations to theoretically describe the possible crack-closing phenomena in metallic self-healing materials/MMCs.
||Planned: None Selected