INFLUENCE OF PULSED MAGNETIC FIELD ON MICROSTRUCTURES AND MACRO-SEGREGATION IN 2124 Al-ALLOY

INFLUENCE OF PULSED MAGNETIC FIELD ON MICROSTRUCTURES AND MACRO-SEGREGATION IN 2124 Al-ALLOY
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发表时间：
2009-10
期刊：
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影响因子：
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通讯作者：
C. Ban;J. Cui;Q. Ba
C. Ban;J. Cui;Q. Ba
中科院分区：
其他
文献类型：
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作者：
C. Ban;J. Cui;Q. Ba

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研究了凝固过程中施加脉冲磁场（PMF）时 2124 铝合金的组织和宏观偏析。实验发现，脉冲磁场作用下2124铝合金的凝固组织发生了显着的变化。晶界共晶相由粗的连续共晶网络转变为薄的不连续共晶网络，溶质元素的分布也变得均匀。 Cu在普通凝固条件下典型的负偏析现象得到抑制，Mg的偏析减少。
The structures and macro-segregation of 2124 Al-alloy were studied when a pulsedmagnetic field (PMF) was applied during solidification. It is found through experi-ments that a remarkable change occurs in the solidification structures of 2124 Al-alloyunder pulsed magnetic field. The eutectic phase at grain boundaries change from thickcontinuous eutectic network to thin discontinuous one, and the distribution of soluteelements was also homogenized. The typical negative segregation phenomenon of Cu incommon solidification condition was restrained, and the segregation of Mg decreased.