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对Cr8Mo2Si V钢在1123、1173和1223 K分别进行2、4、6、8 h的固体渗硼试验。结果表明,渗硼层组织为齿状形貌,经X射线衍射(XRD)分析,渗硼层由Fe_2B、FeB、Cr_2B和CrB相组成。渗层厚度随着渗硼温度和渗硼时间的增加而增加,渗硼扩散激活能为194 kJ/mol。经显微硬度、磨损试验结果和磨损产物能谱分析,渗硼后试样表层的硬度和耐磨性较渗硼前有显著的提高。
The solid boronizing tests of Cr8Mo2Si V steel were carried out at 1123, 1173 and 1223 K for 2, 4, 6 and 8 h respectively. The results show that the boronizing layer has a dentate morphology, and the boronizing layer is composed of Fe_2B, FeB, Cr_2B and CrB phases by X - ray diffraction (XRD). The thickness of infiltration layer increases with the increase of boronizing temperature and boronization time, and the activation energy of infiltration diffusion is 194 kJ / mol. After the microhardness, wear test results and wear product energy spectrum analysis, the surface hardness and wear resistance of the sample after boronizing than boronizing significantly improved.