Dziarski Piotr, Makuch Natalia
Institute of Materials Science and Engineering, Poznan University of Technology, Pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland.
Materials (Basel). 2024 Aug 7;17(16):3922. doi: 10.3390/ma17163922.
Commercially pure titanium was plasma paste borided using various temperatures of the process. An increase in the boriding temperature resulted in an increase in the thickness of the borided layer. All the layers produced consisted of an outer compact TiB zone and an inner TiB zone in the form of whiskers penetrating into the substrate. The presence of hard titanium borides resulted in a significant increase in wear resistance compared to non-borided pure titanium. However, the thickness of the layer produced strongly influenced the wear behavior, in respect of the time required for complete destruction of the layer. Higher wear resistance was characteristic of the TiB layer due to its compact nature, whereas the specific morphology of TiB whiskers resulted in their lower wear resistance compared to the outer TiB layer. Plasma paste boriding of pure titanium also had an advantageous effect on corrosion resistance compared to non-borided pure titanium. Simultaneously, due to the higher thickness of TiB layer, the specimen borided at a higher temperature showed higher corrosion resistance.
采用不同的工艺温度对工业纯钛进行等离子膏剂硼化处理。硼化温度的升高导致硼化层厚度增加。所形成的所有硼化层均由一个外层致密TiB区和一个以晶须形式向内渗透到基体中的内层TiB区组成。与未硼化的纯钛相比，硬质硼化钛的存在显著提高了耐磨性。然而，就硼化层完全破坏所需的时间而言，所形成的硼化层厚度对磨损行为有很大影响。由于TiB层结构致密，其具有较高的耐磨性，而TiB晶须的特殊形态导致其耐磨性低于外层TiB层。与未硼化的纯钛相比，纯钛的等离子膏剂硼化处理对耐腐蚀性也有有利影响。同时，由于TiB层厚度较大，在较高温度下硼化的试样具有更高的耐腐蚀性。
