The pack boriding process of Fe-based powder compact was carried out at 850 to 1050°C for 3 to 10 h. The microstructure and the thickness of the boride layer were observed by VHX-6000 ultra-depth microscopic three-dimensional microscope. The surface hardness of the boride layer was measured by a Rockwell hardness tester, the phase composition of the boride layer was analyzed by X-ray diffractometer and the friction and wear properties of the sample were tested on the MMW-2 friction and wear tester. The worn surfaces of boride layer was observed by scanning electron microscope. The results show that the boride layer was mainly composed of Fe₂B single phase, and its thickness was uniform and firmly bonded to the substrate. The thickness and hardness of the layer gradually increased with time and temperature. The binding force between the layer and the substrate would be decreased while the thickness of the layer was too thin or too thick. Boriding at 850, 900, and 950°C resulted with formation of Fe₂B phase while FeB and Fe₂B phases occurred at 1050°C. The thickness of the layer in a suitable range could improve the wear properties of the material.

Fe基粉末压块的填充渗硼过程在850至1050℃下进行3至10小时。用VHX-6000超深度显微三维显微镜观察硼化物层的组织和厚度。用洛氏硬度计测量硼化物层的表面硬度，用X射线衍射仪分析硼化物层的相组成，并在MMW-2摩擦磨损测试仪上测试样品的摩擦磨损性能。通过扫描电子显微镜观察硼化物层的磨损表面。结果表明，硼化物层主要由Fe ₂组成B为单相，并且其厚度均匀并且牢固地结合到基底上。层的厚度和硬度随时间和温度而逐渐增加。当层的厚度太薄或太厚时，层和基底之间的结合力将减小。在850、900和950°C时硼化导致形成Fe ₂ B相，而在1050°C时出现FeB和Fe ₂ B相。层的厚度在合适的范围内可以改善材料的耐磨性能。