Heterogeneous nucleation behavior of Al on single crystal {0001}Al<sub>2</sub>O<sub>3</sub> substrate under a static magnetic field
Abstract The effect of a static magnetic field (SMF) on the heterogeneous nucleation of Al on { <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mn>0001</mml:mn> </mml:math> }Al 2 O 3 substrate was studied at the atomic scale, revealing a 4.7 °C increase in nucleation temperature. Electron backscattered diffraction and high-resolution transmission electron microscopy showed angle deviations in matching planes due to SMF, linked to crystallographic matching. The edge-to-edge matching model predicted orientation relationships (ORs) at interface, aligning with experiments. The altered ORs, induced by the magnetic field, suggest a change in interfacial energy, reducing undercooling. This indicates SMF can control solidification in metals by influencing heterogeneous nucleation.
Authors
- Zhongming Ren (ORCID: https://orcid.org/0000-0002-7957-9996)
- Sansan Shuai (ORCID: https://orcid.org/0000-0003-3801-0944)
- Simeng Wen (ORCID: https://orcid.org/0000-0001-7989-7700)
- Tao Hu (ORCID: https://orcid.org/0000-0002-3293-0881)
- Jiang Wang (ORCID: https://orcid.org/0000-0003-0180-7351)
- Chenglin Huang (ORCID: https://orcid.org/0000-0001-6307-7855)
Institutions
- Shanghai University (CN)
Publication Details
- Journal
- Japanese Journal of Applied Physics
- Published
- 2025-08-01
- DOI
- https://doi.org/10.35848/1347-4065/adfb17
- Primary Topic
- Aluminum Alloy Microstructure Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Shanghai Rising-Star Program
- State Key Laboratory of Advanced Special Steel