摘要
采用自制脉冲电源,研究脉冲磁致振荡(pulse magneto-oscillation,PMO)对纯铝凝固组织的作用效果,考察浇注温度对纯铝凝固组织细化的影响.实验结果表明,低的浇注温度有利于铸锭中形成适合晶核生存的温度场,增加晶核存活数量,从而改善铸锭的细化效果.
Using a home-buih electric pulse power, the refinement effects of pulse magneto-oscillation (PMO) on the solidification structure of pure aluminum were investigated under various pouting temperatures. The results show that low pouring temperature is beneficial in obtaining the right temperature field for the survival of nuclei and increasing the number of nuclei, resulting in a better refining effect.
出处
《上海大学学报(自然科学版)》
CAS
CSCD
北大核心
2012年第3期323-326,共4页
Journal of Shanghai University:Natural Science Edition
基金
国家自然科学基金资助项目(50734008
50574056)
关键词
脉冲磁致振荡
纯铝
凝固组织
浇注温度
pulse magneto-oscillation (PMO)
pure aluminum
solidification structure
pouringtemperature