(1. 宝钛集团有限公司，宝鸡 721014；
2. 北京科技大学 冶金工程研究院，北京 100083)
摘 要: 利用光学显微镜、扫描电子显微镜分析不同热处理温度下钛钢爆炸复合板波状界面的扩散特征。结果表明：在界面上首先形成TiC。随后在波头处发生分解，形成Ti-Fe金属间化合物，铁元素向钛侧扩散。铁元素沿波状界面由波头向波尾扩展，扩散层随温度升高而增加。界面曲率的变化和浓度梯度给元素的扩散提供了驱动力。
关键字: 钛钢复合板；扩散行为；组织特征；热处理；曲率
（1. Baoti Group Co. Ltd.,Baoji 721014, China;
2. Metallurgical Engineering Research Institute, University of Science and Technology Beijing, Beijing100083, China）
Abstract:With optical microscopy and scanning electron microscopy, the wavy interface diffusion characteristics of titanium steel explosive clad plate were analyzed at different heat treatment temperatures. The results show that TiC is firstly formed on the interface, followed by decomposition in the head of wave, and then forms Ti-Fe intermetallic compound. The iron diffuses toward the titanium side. The iron diffuses from the front to the tail along the wave interface, the diffusion layer increases with the increase of the temperature. Changes of the interface curvature and the concentration gradient provide driving force for diffusion.
Key words: titanium clad steel plate; diffusion behaviour; microstructure characteristics; heat treatment; curvature
