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试验采用了氨加二硫化碳与过热水蒸汽反应生成硫化氢气体，进行Ｓ－Ｎ共渗工艺研究，观察了共渗层的金相组织，测试了显微硬度及其渗层的相组成和Ｓ－Ｎ的分布，进行了磨损和声发射脆性试验。高速钢工具Ｓ－Ｎ共渗应用表明，共渗层具有良好的抗啮合性能、耐磨性及较低的脆性。
Ammonia plus carbon disulfide was reacted with superheated steam to produce hydrogen sulfide gas. The S-N co-permeation process was studied. The microstructure of the co-diffusion layer was observed. The microhardness and the phase composition of the infiltrated layer and S -N distribution, wear and acoustic emission brittleness test. S-N co-application of high-speed steel tools shows that the co-diffusion layer has good anti-meshing properties, wear resistance and low brittleness.