16Mn钢固体渗硼工艺研究  

Study on Solid Boronizing Process of 16Mn Steel

作　　者：赵爱彬[1] 李菁 

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001

出　　处：《热加工工艺》2017年第22期192-194,共3页Hot Working Technology

摘　　要：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FeB或FeB、Fe_2B。Solid boronizing for 16Mn steel was treated under different permeability agent ratios and different heating temperatures. The microstructure, microhardness and surface composition of the samples were analyzed. The results show that when the infiltration agent is borax, alumina, sodium fluoborate, and the process is 950℃×4h, the thickness of the layer is about 55μm; when the infiltration agent is borax, silicon carbide and sodium fluoborate, and the process is 1050℃×4 h, the thickness of the layer is about 65μm. The microhardness of the two kinds of process treatment is significantly higher than that of the matrix. And the bonding strength of the infiltrated layer obtained by 1050℃×4 h and matrix is higher, and the surface of the layer generates FeB or FeB and Fe2B.

关 键 词：16MN钢 固体粉末 渗硼 显微组织 显微硬度 

分 类 号：TG156.8[金属学及工艺—热处理]