| About this Abstract |
| Meeting |
2018 TMS Annual Meeting & Exhibition
|
| Symposium
|
Metal-Matrix Composites Innovations, Advances and Applications: An SMD Symposium in Honor of William C. Harrigan, Jr.
|
| Presentation Title |
Mechanisms of Solid State Interactions of Titanium Nitride and Titanium Carbide Particles in a Secondary Hardenable Steel Matrix |
| Author(s) |
Josef Pörnbacher, Stefan Marsoner, Harald Leitner, Gerald Ressel |
| On-Site Speaker (Planned) |
Josef Pörnbacher |
| Abstract Scope |
Titanium nitride and titanium carbide are frequently used in steel based metal matrix composites due to their high hardness and decent bonding behavior. However, a detailed understanding of the interactions taking place during solid-state consolidation contributing to the bonding behavior is still lacking. This work, therefore, aims on giving a detailed characterization of the solid state interactions of titanium nitride and titanium carbide in steel matrix compounds by analyzing hot isostatically pressed and tempered specimens: Bulk diffusion and diffusion along preferential paths in the interface region are characterized. The emergence of new phases is investigated by means of their formation process, composition and structure for which transmission electron microscopy and atom probe tomography studies are conducted. Finally, the influence of these interactions on the secondary hardening behavior of the steel matrix is determined by nanoindentation testing. |
| Proceedings Inclusion? |
Planned: None Selected |