| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Composition–Processing–Microstructure-Property Relationships of Titanium Alloys
|
| Presentation Title |
Titanium Boron Nitride Nanotubes (Ti-BNNT) Metal Matrix Composite Processed by SPS: Microstructure, Mechanical and Tribological Characteristics |
| Author(s) |
Satyavan P. Digole, Sanoj Karki, Jay Desai, Manoj Mugale, Amit Choudhari, Tushar Borkar |
| On-Site Speaker (Planned) |
Satyavan P. Digole |
| Abstract Scope |
Ti-BNNT composites with varying (0.1, 0.25, 0.5, and 1 wt.%) BNNT content were synthesized using ultrasonication and ball milling followed by SPS. SEM and XRD analysis of Ti-BNNT composite evidence the uniform dispersion of BNNTs and showcased no observable undesired reaction products. The addition of BNNT resulted in a 72% increase in hardness from 250 HV for pure Ti to 430 HV for Ti-1 wt.% BNNT composite. The presence of BNNTs at grain boundaries facilitating grain refinement and strong interfacial bonding between Ti and BNNT, promoting excellent loading bearing capability, resulted in enhanced hardness and improved compressive strength (yield strength of up to 1200 MPa and ultimate compressive strength of up to 1600 MPa). Additionally, it showcased superior tribological performance with the lowest CoF of 0.39 for Ti-0.5 wt.% BNNT composites compared to CoF of 0.5 for cp-Ti. |