硼氮共渗过程中碳氮原子活动规律研究

Study on carbon and nitrogen atoms diffusing law in boronitriding process

硼氮共渗层具有硬度高、耐磨性好、耐蚀性强等特点 ,目前已在结构件和模具中广泛应用 .选用 A3 钢和 2 0钢 ,用 X射线衍射仪和俄歇电子谱 ( AES)对渗层进行物相分析和成分分析 .结果表明 ,在硼氮共渗过程中 ,碳原子和氮原子是独立扩散的 ,在渗层与基体之间产生聚集区 。

The boronitriding layer has the specialities of high hardness, good wearing resistance and corrosion protection, so the boronitriding is used widely now. By means of Auger Electron Spectrum(AES), X\|rays diffraction, the composition and phase structure of the boronitrided A 3 steel and 20 steel are determined. These experimental results show that independent diffusion of carbon atom and nitrogen atom can produces the abundant area that can improves the layers strength in boronitriding process.