About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-40: Formation of Tetragonal Phases Through Carbon and Phosphorus Additions |
| Author(s) |
Joanna Go Reyes, Jubert Pasco, Clodualdo Aranas |
| On-Site Speaker (Planned) |
Joanna Go Reyes |
| Abstract Scope |
Tetragonal phases, such as tetrataenite and schreibersite in Fe-Ni, exhibit promising magnetic properties; specifically, the former can be an alternative to rare-earth-based permanent magnets. However, synthesizing these materials to fabricate bulk magnets is challenging due to the low atomic mobility associated with the chemical ordering at a relatively low temperature (i.e., below TOD). It has been shown that adding secondary elements to the Fe-Ni system can influence the lattice structure and thus facilitate the formation of tetragonal phases. In this work, two elements (C and P) were added to Fe-Ni alloy to investigate their effects on the formation of tetragonal phases. Ingots with compositions Fe(60-x)Ni(40-x)P2x and Fe(60-x-y)Ni(40-x-y)P2xC2y (x = 0-8 at. %, y = 0-4 at. %) were fabricated using electric arc melting and were subjected to extensive microstructural analysis. The impact of phosphorus and carbon additions on microstructure, grain growth, and phase formation are discussed. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Iron and Steel, Magnetic Materials, Mechanical Properties |