| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
O-38: Dealloyed High-strength Metallic Coatings |
| Author(s) |
Bernard Gaskey, Ian McCue, Michael Brupbacher, Jonah Erlebacher |
| On-Site Speaker (Planned) |
Bernard Gaskey |
| Abstract Scope |
Liquid metal dealloying (LMD) is an emerging process where partial dissolution of an alloy in a metallic melt drives the evolution of a topologically complex structure. Usually, this is accomplished by immersing the solid alloy in a liquid metal, but an alternative technique is to heat a part to induce partial melting. Here, we demonstrate the latter method by applying a coating to a nickel alloy surface via plasma spray, selected so that the interface between the coating and substrate undergoes eutectic melting when heated. The subsequent dealloying reaction densifies the coating while forming a sub-micron scale composite structure with exceptional mechanical properties. This work demonstrates the scalable fabrication of an extremely strong coating for nickel alloy systems and provides a framework for the development of coatings for other structural metals. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |