金属凝固问题是冶金和金属材料研究领域中一个重要的基础理论问题,长期以来一直受到冶金和金属材料科学工作者的高度重视。定向凝固技术于本世纪五十年代初被多伦多大学的研究人员首先用于研究金属凝固问题,至今仍是研究金属凝固问题的最有效 The problem of solidification of metals is an important fundamental theoretical issue in the field of metallurgy and metal materials research, and has long been highly regarded by metallurgical and metal materials scientists. Directional solidification technology was first used by researchers at the University of Toronto in the early 1950s to study the problem of metal solidification and is still the most effective way to study the problem of metal solidification