Abstract The effect of carbon content on the precipitation and distribution of intermetallic compounds in titanium to decarbonized carbon steel brazed joint was studied. In this work, decarbonization treatment was employed to change the carbon content in the low carbon steel surface and thus influence the diffusion behavior of Ti and Fe elements in the joint. The microstructure, fracture surface and bonding strength of joints were detected by SEM/EDS, XRD and shear strength test. As a result, rich-carbon state in the steel surface profited the bonding of dissimilar joint to some extent during brazing process. TiC generated near carbon steel side can improve the bonding strength of joints by hindering the precipitation of FeTi and Fe2Ti. Precipitation and distribution of TiC, FeTi and Fe2Ti intermetallic compounds in joints were investigated.

中文翻译：

---

使用黄铜填料钎焊钛和钢时金属间化合物的沉淀

摘要 研究了碳含量对脱碳碳钢钛钎焊接头中金属间化合物析出和分布的影响。在这项工作中，通过脱碳处理改变低碳钢表面的碳含量，从而影响接头中 Ti 和 Fe 元素的扩散行为。通过SEM/EDS、XRD和剪切强度试验检测接头的显微组织、断口面和结合强度。因此，在钎焊过程中，钢表面的富碳状态在一定程度上有利于异种接头的结合。在碳钢侧附近生成的TiC可以通过阻碍FeTi和Fe2Ti的析出来提高接头的结合强度。研究了接头中 TiC、FeTi 和 Fe2Ti 金属间化合物的析出和分布。