학술논문
行波磁场作用对凝固过程中气泡的影响 / Effect of traveling magnetic field on gas porosity during solidification
Document Type
Academic Journal
Author
徐严谨; 苏彦庆; 骆良顺; 李新中; 刘江平; 郭景杰; 陈瑞润; 傅恒志; XU Yan-jin; SU Yan-qing; LUO Liang-shun; LI Xin-zhong; LIU Jiang-ping; GUO Jing-jie; CHEN Rui-run; FU Heng-zhi
Source
中国有色金属学报（英文版） / Transactions of Nonferrous Metals Society of China. 21(9):1981-1985
Subject
Language
Chinese
ISSN
1003-6326
Abstract
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.
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.
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.