About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
High-Entropy Materials: Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond VI
|
| Presentation Title |
Influence of Ti on the microstructure and mechanical characteristics of (CrFeNiCu)100-xTix high entropy alloys |
| Author(s) |
Dilshodbek Bakhtiyarovich Yusupov, Sung Hwan Hong, Muhammad Aoun Abbas, Hae Jin Park, Ki Buem Kim |
| On-Site Speaker (Planned) |
Dilshodbek Bakhtiyarovich Yusupov |
| Abstract Scope |
The (CrFeNiCu)100-xTix high-entropy alloys, with titanium varying at x = 0, 3, 5, 7, and 10 at%, were developed based on the thermo-physical interactions between titanium and the primary elements. This design aimed to explore the impact of titanium on the microstructural evolution and mechanical properties of (CrFeNiCu)100-xTix HEAs.
The incorporation of titanium into high-entropy alloys (HEAs) induces a shift in phase composition from a dual-phase structure (FCC1 and FCC2) to a combination of FCC1, FCC2, and an additional BCC phase. This modification significantly enhances the yield strength and Vickers hardness, increasing from 291 MPa to 1511 MPa and from 134 to 531 HV, respectively, primarily because of higher volume fraction of the BCC phase. These findings demonstrate that introducing a minor alloying element, guided by thermo-physical parameters, can produce a multi-phase solid solution structure with outstanding mechanical properties in high-entropy alloys. |