We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Microstructure Evolution in a Cast and Homogenized Nd-Fe-B-Cu Alloy: Experimental Study and Thermodynamic Calculations.
- Authors
Patnaik, Subhrajit; Kumar, Ranjeet; Pal, Varinder; Paliwal, Manas; Palit, Mithun; Mandal, Sumantra
- Abstract
A commercial grade Nd15.5Fe78B5Cu1.5 alloy was prepared through the melting-casting route. The as-cast (AC) alloy was characterized by X-ray diffraction (XRD) and scanning electron microscopy techniques. XRD and energy-dispersive spectroscopy analyses revealed the presence of Nd2Fe14B, Nd2Fe17, Nd-rich phase (Nd/NdCu eutectic), and α-Fe phases in the AC specimen. Retainment of α-Fe in the AC microstructure makes a core-shell type microstructure in this condition. Thermodynamic predictions based on the non-equilibrium (Scheil-Gulliver) solidification calculations validate the retainment of both α-Fe and Nd2Fe17 phases in the AC microstructure. A homogenization treatment has been conducted at 1373 K for 2 h, which effectively results in a substantial reduction in the phase fraction of remnant α-Fe.
- Subjects
ELECTRON microscope techniques; X-ray diffraction; SCANNING electron microscopy; MICROSTRUCTURE; SOLIDIFICATION
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2024, Vol 76, Issue 9, p5324
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-024-06726-9