Effect of the Electromagnetic Vibration Intensity on Microstructural Refinement of Al-7%Si Alloy
スポンサーリンク
概要
- 論文の詳細を見る
The static magnetic field and the alternating electric field were simultaneously imposed on the melt of Al-7%Si hypo-eutectic alloy, and primary α-dendrite particles were refined by electromagnetic vibrations imposed during solidification. The refinement mechanism of primary α-dendrite particles was quantitatively investigated in terms of vibration intensity. When the vibration intensity was increased, coarse equiaxed dendrite particles decreased, and primary α-dendrites approached a globular shape that size was about 25 μm in diameter. By contrast, dendrite arm spacing (DAS) remained intrinsically unchanged even if vibration intensity was changed with electric current intensity. Refinement of primary α-dendrite particles was likely to be caused by collapse of dendrite arms due to the micro-explosion and stirring of the melt.
- The Japan Institute of Metals and Materialsの論文
The Japan Institute of Metals and Materials | 論文
- Control of Ferromagnetism in Magnetic Semiconductors and Application for Spin-polarized Electron Source
- 超高純度金属の実用化への道
- 非極性 GaN 層中の微結晶粒の効率的な検出と今後の展望
- Recycling Technology for Platinum Group Metals by Using Perovskite-type Oxides
- Specimen Preparation Methods with FIB for In-Situ TEM Observations in Materials Science—TEM Specimen Preparation by FIB with Glass Manipulator—