材料科学
金属间化合物
粘结强度
微观结构
复合材料
钛
动态再结晶
扩散焊
冶金
抗剪强度(土壤)
变形(气象学)
图层(电子)
合金
热加工
胶粘剂
土壤水分
土壤科学
环境科学
作者
Yue Wu,Tao Wang,Zhongkai Ren,Yuanming Liu,Qingxue Huang
标识
DOI:10.1016/j.jmatprotec.2022.117780
摘要
Ti/steel clad plates have good corrosion resistance and lower titanium cost. However, the low interfacial bond strength severely restricts their wide application. In this study, a new process is proposed for preparing Ti/steel clad plates with high bond strength by employing double-layered slab assembly and hot rolling. The effect of temperature on bond strength is systematically studied. The results show that the shear strength initially increases and then decreases with increasing temperature from 700 °C to 950 °C. The maximum strength value of 311 MPa is obtained at 850 °C with a reduction rate of 30 % in a single pass. The mechanism analysis shows that the bond strength is affected by temperature in terms of metal deformation, elemental diffusion and intermetallic compound (IMC) formation. In addition, the shear strength depends on different degrees of dislocation strengthening and recrystallization in the titanium matrix when the fracture is located at titanium matrix near the interface. Finally, a phenomenological prediction mechanism-based model is developed to describe the relationship between the temperature and the bond strength. This research can provide guidance for the hot rolling preparation of Ti/steel clad plates with high bond strength.
科研通智能强力驱动
Strongly Powered by AbleSci AI