渗硅是一种提高钢铁零件耐腐蚀性特别是在侵蚀性介质中工作的零件耐腐蚀性的方法。在零件表面上获得致密无孔隙的渗硅层时其抗蚀性提高。因此,在钢件上得到无孔隙的渗硅层乃是完成这一工艺过程的最重要任务之一。文献[1,2]中的分析表明,在大多数场合下,用接触法渗硅(粉末渗硅)时,在渗硅的表面上形成脆性表层,它由硅浓度高的α′相(Fe_3Si)构成。该层与其内层的 Silicon seepage is a way to improve the corrosion resistance of steel parts, especially parts that work in aggressive media. Corrosion resistance increases when a dense, nonporous siliconized layer is obtained on the part surface. Therefore, obtaining a non-porous siliconized layer on the steel is one of the most important tasks in accomplishing this process. The analysis in [1, 2] shows that in most cases, when the contact method is used to infiltrate silicon (powder silicon infiltration), a brittle surface layer is formed on the surface of the silicon infiltration which is composed of α ’phase (Fe 3 Si )constitute. The layer with its inner layer