| About this Abstract |
| Meeting |
3rd World Congress on High Entropy Alloys (HEA 2023)
|
| Symposium
|
HEA 2023
|
| Presentation Title |
Influence of Si on Latent Heat Release in Solidification and Microstructures of CrFeCoNi-Si Alloys |
| Author(s) |
Jinno Maika, Toru Maruyama |
| On-Site Speaker (Planned) |
Jinno Maika |
| Abstract Scope |
Some high-entropy alloys (HEAs) like CrMnFeCoNi alloy show excellent low-temperature toughness due to TWIP resulting from their low stacking fault energy (SFE). Alloying Si into this type of HEAs has been expected to improve the balance between strength and ductility because first-principles calculations have shown SFE of the HEAs alloyed with Si locally increases.The influence of Si content on the phase transformation process and temperature was investigated to obtain fundamental knowledge for the preparation and understanding of this alloy.
CrFeCoNi alloys with Si content of 13-20at% were prepared by the casting process. Two latent heat releases were detected from the thermal analysis curve during cooling. One at the high temperature side was the melting point, which decreased with increasing Si content. The other the formation of the second phase. It was almost constant regardless of Si content, suggesting that the latent heat release was caused by an invariant reaction. |
| Proceedings Inclusion? |
Planned: Metallurgical and Materials Transactions |