Alloying treatment was performed on 38CrMoAl alloy steel by using continuous scanning electron beam to improve surface performance. The effects of the TiN/Ni ratio on the microstructure, phase composition and mechanical properties of the alloying layer were discussed. As the TiN fraction in the TiN/Ni mixed powder increased, fine equiaxed crystals develop at the top of the alloying layer. When the TiN fraction is 20%, the alloying layer is mainly composed of fine equiaxed crystals and columnar crystals that are uniformly distributed. The alloying layer with TiN mainly contains γ-Ni, Fe-Ni, as well as phases such as TiN, Cr₂₃C₆ and Cr₇C₃. The surface hardness can reach as high as 1140 HV when the TiN fraction is 20%, which is 3.7 times that of the alloying layer without TiN. Moreover, the friction coefficient and abrasion loss decreased by about 47% and 55%, respectively.

通过使用连续扫描电子束对38CrMoAl合金钢进行合金化处理，以改善表面性能。讨论了TiN / Ni比对合金层组织，相组成和力学性能的影响。随着TiN / Ni混合粉末中TiN含量的增加，在合金层的顶部会形成细小的等轴晶体。当TiN分数为20％时，合金层主要由均匀分布的细等轴晶体和柱状晶体组成。与TiN的合金层主要包含γ-Ni，Fe-Ni以及TiN，Cr ₂₃ C ₆和Cr ₇ C _3等相。。TiN分数为20％时，表面硬度可高达1140 HV，是没有TiN的合金层的3.7倍。此外，摩擦系数和磨损损失分别降低了约47％和55％。