论文部分内容阅读
利用光学显微镜、扫描电子显微镜、X射线衍射仪、透射电子显微镜、显微硬度计和拉剪实验,研究不同热处理温度对钛-钢爆炸轧制复合板界面组织特征和性能的影响。热处理温度为650、750、850、950°C,保温时间为60 min。结果表明:热处理过程加速界面元素扩散和组织的转变。随着温度的升高,复合板剪切强度下降。在850°C及以下温度热处理时,扩散反应层形成化合物TiC,剪切强度下降缓慢。当热处理温度超过850°C时,扩散反应层形成大量的Ti-Fe金属间化合物(Fe2Ti/FeTi)及少量的TiC,剪切强度明显下降。
The effects of different heat treatment temperature on the microstructure and properties of the interface of Ti-steel detonation-rolled composite plates were studied by optical microscope, scanning electron microscopy, X-ray diffraction, transmission electron microscopy, microhardness tester and tensile shear test. Heat treatment temperature of 650,750,850,950 ° C, holding time of 60 min. The results show that the heat treatment accelerates the diffusion of interface elements and the transformation of the microstructure. As the temperature increases, the shear strength of the composite board decreases. At 850 ° C and below heat treatment, the diffusion reaction layer forming compound TiC, the shear strength decreased slowly. When the heat treatment temperature exceeds 850 ° C, a large amount of Ti-Fe intermetallic compound (Fe2Ti / FeTi) and a small amount of TiC are formed in the diffusion reaction layer, and the shear strength is significantly decreased.