| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials: Sustainable and Eco-Friendly Material Development and Applications
|
| Presentation Title |
Systematic Study of the Effect of K2TiF6 Flux Content on the Microstructure and Mechanical Properties of Al–B4C Composites |
| Author(s) |
Chandan Kumar, Sukanta Sarkar, Indrani Sen, Siddhartha Roy |
| On-Site Speaker (Planned) |
Chandan Kumar |
| Abstract Scope |
Influence of varying K2TiF6 flux content on the microstructural and mechanical property evolution was systematically investigated for Al-B4C composites in both as-cast and T6 heat-treated conditions. Accordingly, AA6061 alloy reinforced with 6 wt.% B4C and varying (40 wt.%, 70 wt.%, and 100 wt.%) contents of the flux with respect to B4C were fabricated using stir-squeeze casting. Interestingly, B4C retention within the matrix was noted to significantly improve with increasing flux content from 70% to 100%. This was related to better interfacial bonding along with formation of Ti-rich intermetallic phases, which were not sufficiently formed with 40% flux. Presence of ex-situ B4C and in-situ Al-Ti particles resulted in enhanced strength and hardness of the composites. Different strengthening mechanisms such as grain-refinement, load-transfer, thermal-expansion mismatch, and stiffness-mismatch between the matrix and the reinforcing particles, were thoroughly investigated. These findings underscored the critical role of K2TiF6 in optimizing AA6061-B4C composites for advanced applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, |