The process of formation of surface layer on steel AISI D2 pack siliconized at 650, 800 and 950°C for 2, 3, and 4 h using a powder mixture (in wt.%) of 0.5, 0.75, 1.0 NH₄Cl + 12 Si, the remainder Al₂O₃ is studied. The siliconized layer is analyzed by x-ray diffractometry and electron microscopy, and its microhardness is measured. It is shown that the thickness and the microhardness of the coating increase with the temperature and the treatment time and with the content of the halide activator. The response surface methodology based on the Box–Behnken method is used to optimize the siliconizing process for steel AISI D2.

使用 0.5、0.75、1.0 NH ₄ Cl + 12的粉末混合物（重量百分比）在 650、800 和 950°C 下硅化 2、3 和 4 小时的 AISI D2 钢包表面层形成过程研究Si，余量Al ₂ O ₃。通过X射线衍射和电子显微镜分析硅化层，并测量其显微硬度。结果表明，涂​​层的厚度和显微硬度随温度和处理时间以及卤化物活化剂含量的增加而增加。基于 Box-Behnken 方法的响应面法用于优化 AISI D2 钢的渗硅工艺。