(1.上海大學 材料科學與工程學院，上海 200072；
2. 河北科技大學 材料科學與工程學院，石家莊 050054)
摘 要: 綜述了國內外關于電流、磁場和超聲波處理對金屬凝固過程與凝固組織影響的研究概況，根據(jù)電磁學、聲學及金屬凝固原理分析了物理場細化和改善凝固組織的主要機制，提出了外加物理場凝固細晶技術在工業(yè)中應用尚需研究解決的技術與理論問題，特別強調了脈沖物理場處理技術的優(yōu)越性及應用前景。
關鍵字: 物理場；凝固；組織
（1. School of Materials Science and Engineering，
Shanghai University, Shanghai 200072, China;
2. School of Materials Science and Engineering，
Hebei University of Science and Technology,
Shijiazhuang 050054, China）
Abstract:The research on the effects of electric，magnetic and ultrasonic field s on solidification process and structure of metals is reviewed. T he primary mechanisms of the refinement and improvement on solidification structure are analyzed based on electromagnetics，acoustics and theories of metal solidification. Technology and theory problems those should be researched and solved before the application of the physical fields treatment technology in industry are indicated. The advantages and foreground of pulse physical fields treatment are emphasized.
Key words: physical field; solidification; structure
