About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys IV
|
| Presentation Title |
Experimental determination and thermodynamic assessment of the phase equilibria in the Co–Si binary system |
| Author(s) |
Kazushige Ioroi, Shunya Mochimaru, Xiao Xu, Ryosuke Kainuma, Toshihiro Omori |
| On-Site Speaker (Planned) |
Kazushige Ioroi |
| Abstract Scope |
Co–Cr–Al–Si alloys are promising candidates for biomedical applications due to their excellent wear and corrosion resistance and low Young’s modulus. To further optimize their properties, accurate phase diagram information is essential. The CALculation of PHAse Diagrams (CALPHAD) method is a powerful tool for alloy design, enabling the prediction of phase equilibria in multicomponent systems. Reliable phase equilibrium data of binary system are critical for accurate multicomponent calculations. Therefore, in this study, the phase equilibria of the Co–Si binary system were investigated both experimentally and thermodynamically. The phase equilibria in the Co–Si binary system were determined across the entire composition range, showing significant improvements compared with previous studies. The compositional measurements revealed that the CoSi2 phase has a solubility extending toward the Si-rich side. The optimized thermodynamic parameters of the Co–Si binary system successfully reproduced the experimental phase boundaries and thermodynamic quantity data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Phase Transformations, Other |