Pengembangan Paduan Cor Oxide Dispersion Strengthened Fe-Ni-Cr/Y₂O₃: Material Tahan Suhu Tinggi untuk Aplikasi Potensial di Bidang Energi dan Nuklir = Development of Cast Oxide Dispersion Strengthened Fe-Ni-Cr/YâOâ Alloys: High-Temperature-Resistant Materials for Potential Applications in the Energy and Nuclear Fields