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中文摘要：
研究行波磁场对铝合金除气行为的影响,计算行波磁场对气泡形核临界半径的影响。结果表明：在行波磁场作用下,气泡的临界形核半径随着电磁场强度的增大呈线性递减,电磁力促进了气泡的非均匀形核,电磁力使得气泡在熔体中长大,并在电磁力的驱动下向熔体的外部溢出。试样中的气泡数随行波磁场感应强度的增大而减少。
英文摘要：
The effects of traveling magnetic field on degassing of aluminum alloys were investigated, and the critical radius of the pores was calculated. The results show that the critical radius of the pores decreases with increasing the magnetic density linearly when the traveling magnetic field is applied during solidification, and the use of traveling magnetic field promotes the heterogeneous nucleation of pores. After the gas dissolved in the metal liquid accumulates to form large bubbles, the traveling magnetic field forces the bubbles to the surface of molten metal, so the gas is easy to separate from the melt in the liquid stage. The number of pores in the sample decreases with increasing the intensity of traveling magnetic field.
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