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- Title
Influence of Static Magnetic Field on the Microstructure of Nickel-Based Superalloy by Laser-Directed Energy Deposition.
- Authors
Du, Dafan; Dong, Anping; Shu, Da; Wang, Donghong; Zhu, Guoliang; Sun, Baode; Lavernia, Enrique J.
- Abstract
The influence of a static magnetic field on microstructure evolution during laser direct energy deposition was studied. Our results reveal that dendrite spacing increases with increasing magnetic field flux density (MFFD). Moreover, electron backscatter diffraction results reveal that the epitaxial growth was preferred with increasing MFFD. We discuss these findings in terms of the influence of a magnetic field on melt convection and propose that an applied magnetic field effectively limits Marangoni convection.
- Subjects
NICKEL alloys; MAGNETIC fields; MAGNETIC flux density; MARANGONI effect; HEAT resistant alloys; EPITAXY
- Publication
Metallurgical & Materials Transactions. Part A, 2020, Vol 51, Issue 7, p3354
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-020-05783-4