Abstract In situ grown titanium carbide (TiC) particle on the surface of low carbon steel was synthesized using tungsten inert gas (TIG) arcing process to enhance its wear resistance. X-ray and electron back scattered diffraction results reveal the formation of only titanium carbide particles as precipitate in the matrix. The modified region shows uniform distribution of the TiC in the matrix having cubical as well as rod like structure with various sizes ranging from micron to nano level. The high resolution transmission electron microscopy analysis reveals that the nano size TiC precipitates were coherent with the misfit of 2.5% with the matrix. Microhardness of the surface composite was increased by 150% than base metal. Gradual decrease in the hardness shows the unique advantage of using TIG arcing process for having a hard surface for resisting material loss with a relatively soft core for absorbing energy.

中文翻译：

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通过 TIG 电弧在铁基体中原位形成碳化钛进行表面改性

摘要 采用钨极惰性气体保护（TIG）电弧工艺在低碳钢表面原位生长碳化钛（TiC）颗粒，以提高其耐磨性。X 射线和电子背散射衍射结果表明，在基体中仅形成碳化钛颗粒作为沉淀物。改性区域显示出 TiC 在具有立方体和棒状结构的基体中的均匀分布，具有从微米到纳米级的各种尺寸。高分辨率透射电子显微镜分析表明，纳米尺寸的 TiC 沉淀与基体的错配率为 2.5%。表面复合材料的显微硬度比母材提高150%。