About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Chemistry and Physics of Interfaces
|
Presentation Title |
Grain Boundary Doping and Precipitation to Enhance Nanostructured Materials |
Author(s) |
Daniel Kiener, Julius F Keckes, Klemens Schmuck, Hannah Lichtenegger, Michael Burtscher, Markus Alfreider |
On-Site Speaker (Planned) |
Daniel Kiener |
Abstract Scope |
Interfaces provide a wide range of possibilities to enhance functional and structural material properties. This is particularly amplified for the case of nanostructured materials, where the large fraction of interfaces provides increasing opportunities. There are several concepts for grain boundary engineering reported in literature, spanning all the way from individual doping atoms to continuous grain boundary phases. In the presented work, we place emphasis on two approaches, namely grain boundary segregation of dilute doping elements, as well as grain boundary precipitation for the case that noticeable grain boundary excess of the solute is reached. Miniaturized mechanical deformation and fracture experiments are employed in concert with microstructural investigations to analyze the plastic deformation and failure mechanisms in detail. Building on these insights we assess the potential of such interface modification concepts towards increasing strength, ductility and toughness of nanostructured and nanolayered metal systems. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Mechanical Properties, Characterization |