为了改善金属材料表面的力学性能,提高材料的环境服役行为,利用爆炸加载方法可在N6板的表面制备出一层晶粒尺寸细小、界面密度高的硬化层。研究结果表明:爆炸加载可为N6表面的强烈塑性变形提供高效能量,使材料表层晶粒得到充分细化,力学性能沿厚度方向呈梯度变化。与原始组织相比,爆炸加载后N6表面显微硬度提高近1倍,耐磨性提高0.72倍。 In order to improve the mechanical properties of the metal surface and improve the environmental service performance of the material, a layer of hardened layer with small grain size and high interface density can be prepared on the surface of the N6 plate by using an explosion loading method. The results show that the explosive loading can provide high energy for the intense plastic deformation of the N6 surface, so that the surface grains of the material are fully refined and the mechanical properties change along the gradient of the thickness direction. Compared with the original one, the microhardness of N6 surface increased nearly 1 time and the wear resistance increased 0.72 times after the explosion loading.