论文部分内容阅读
采用不同渗剂配比、不同加热温度对16Mn钢进行固体渗硼处理,并对其显微组织、显微硬度及试样表面成分进行分析。结果表明:渗剂(硼砂、氧化铝、氟硼酸钠)工艺为950℃×4 h的渗层厚度约为55μm;渗剂(硼砂、碳化硅、氟硼酸钠)工艺为1050℃×4 h的渗层厚度约为65μm。两种工艺处理后显微硬度均明显高于基体硬度,但1050℃×4 h得到的渗层与基体结合强度更高,其表面层生成Fe B或Fe B、Fe_2B。
Different proportions and different heating temperatures were used to solidify the 16Mn steel, and the microstructure, microhardness and surface composition of the samples were analyzed. The results show that the infiltration agent (borax, alumina and sodium fluoborate) has a thickness of about 55μm at 950 ℃ for 4 h. The penetration coefficient (borax, silicon carbide and sodium fluoborate) is 1050 ℃ × 4 h The thickness of the layer is about 65 μm. The microhardness of both treatments were obviously higher than that of the matrix. However, the diffusion layer obtained from 1050 ℃ × 4 h had higher bonding strength with the matrix, and the surface layer formed Fe B or Fe B and Fe_2B.