定向结晶及单晶技术发展态势

A Review about Development of Directional Solidification and Single Crystal Technology

全面叙述定向结晶及单晶技术方法及理论分析， 介绍近期的研究发展， 提出深入研究定向结晶及单晶组织性能及晶体取向与塑性变形的机理， 为材料加工提供１ 种先进的技术路线， 这对贵金属精细材料的加工有重要意义。

The method,equipment,(constitution and propertis)as well as theory of directional solidification and single crystal were reviewed.It is necessary to research in more detail about the relationships of orientation and deformation of metal crystal for establishment of a good theory foundation and preparation of fine products of precious metals.