反向凝固过程铜/钢复合界面的研究  

Bonding Interface Between Produced by the Copper and Mild Steel Inversion Casting

作　　者：于九明[1] 孝云祯[1] 王群骄[1] 陈金英 李玉刚 张大伟 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110006 [2]西安铁路信号厂,西安710048

出　　处：《东北大学学报（自然科学版）》2000年第3期286-289,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目! (596 74 0 35)

摘　　要：界面是复合材料特有的而且是及其重要的组成部分·采用光学显微镜、扫描电镜等手段 ,分析了反向凝固复合铜 /钢界面形态 ,组织结构和过渡区成分变化 ,探索反向凝固复合的初结合机制·研究表明 ,铜 /钢反向凝固复合经历液态铜在固态钢表面初始润湿 ;液态铜的凝固、结晶 ;Fe,Cu原子互扩散等物理冶金变化过程 。Bonding interface is the most important part of constructural composites. The morphology,microstructure and the transition zone of the interfaces between the copper and steel were analyzed by means of optical microscope and electronic microscope. Experiments indicate that cladding process of copper steel inversion casting follows the sequence of initially wetting of the liquid Cu on the solid Steel,solidification of liquid Cu and inter diffusion of Fe and Cu atoms. The effective metallurgy nond at the interface was identified.

关 键 词：反向凝固 铜 钢 复合界面 

分 类 号：TG111.4[金属学及工艺—物理冶金]