定向凝固技术的研究进展与应用  

Research Progress and Application of the Directional Solidification Technology

作　　者：问亚岗 崔春娟[1] 田露露[1] 杨猛[1] 薛添[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055

出　　处：《材料导报》2016年第3期116-120,共5页Materials Reports

基　　金：国家自然科学基金(51201121);陕西省自然科学基础研究计划项目(2012JQ6004)

摘　　要：定向凝固技术是制备具有单一取向要求的凝固组织和高性能材料的重要方法,是研究凝固理论和新型材料的重要手段。在介绍定向凝固技术原理的基础上,评述了传统定向凝固技术的发展及存在的弊端,简述了几种新型定向凝固技术,以及它们在制备新材料中的应用。Directional solidification technology is an important method to prepare materials with single orienta- tion structure and advanced properties. It is also an important approach to study solidification theory and new mate- rials. In the present article, the development and the shortcomings of the traditional directional solidification technolo- gies are described on the basis of the directional solidification theory, and new directional solidification technologies and the application are briefly introduced as well.

关 键 词：定向凝固 温度梯度 凝固组织 凝固速率 冷却速率 

分 类 号：TG244.3[金属学及工艺—铸造] O782[理学—晶体学]