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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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恒定磁场作用下Al-Pb合金快速定向凝固
, PP. 1344-1348
Keywords: Al-Pb合金,凝固,磁场,对流
Abstract:
在恒定磁场作用下对Al--Pb合金进行了快速定向凝固实验,考察了磁场强度对凝固组织的影响,分析了磁场的作用机理.结果表明,恒定磁场能显著减弱熔体对流,提高凝固界面前沿液--液相变过程的空间均匀性,减缓液滴的碰撞凝并速度,使凝固试样中的弥散相粒子最大和平均尺寸减小,粒子尺寸分布范围变窄,有助于获得弥散型偏晶合金凝固组织.
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