| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Interfacial and Microstructural Characteristics of Mechanically Alloyed and Spark Plasma Sintered Fe-Ni-Si alloys. |
| Author(s) |
Bamidele Lawrence Bayode, Molebogeng Maumakwe, Linda Moipone Teffo, Peter Apata Olubambi |
| On-Site Speaker (Planned) |
Bamidele Lawrence Bayode |
| Abstract Scope |
Interfacial characteristics effects in the evolution of sintered microstructures of crystalline and amorphous powders is crucial to the successful development of advanced alloys. The microstructural effects of milling time were considered, and subsequent spark plasma sintering performance of the alloyed powders conducted. Fe-Ni20Si10 powders were milled with a ball-to-powder ratio of 10:1, and milling time in the range 6 to 36 hours. Furthermore, the milled powders were spark plasma sintered in a vacuum chamber, at heating rate of 100 oC/min, pressure of 50 MPa, holding time of 5 min, and sintering temperature of 900 oC. Phase evolution was observed using the X-ray diffraction technique, while the microstructural analyses and interdiffusion of atomic species were obtained the scanning electron microscopy equipped with the energy dispersive spectrometer. A strong correlation between phase evolution in the sintered products and microstructures of pre-alloyed powders due to varying milling times was noted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Process Technology, Powder Materials, Phase Transformations |