電子衝撃による鋼板上TiC硬質層の形成

抄録

For the purpose of obtaining a high hardness coating, a steel plate surface spread uniformly with TiC powder is molten by the electron bombardment. The powder, which is white heated by the bombardment but still in solid state, precipitates into the molten surface layer. The TiC-containing steel surface thus formed has a high hardness number of Hv 2700-5400. Optical and electron microscopic investigations of a section of the high hardness coatings show that the TiC particles are wetted by steel, and the coating adheres strongly to the substrate by the wedge effect. It was also found that neither minute holes nor bubbles are detected. This TiC-coated steel can be used as a high hardness, heat-resistance and wear-resistance material.