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本文通过金相、X射线结构分析、钻头的耐用度、耐磨性以及摩擦力矩等试验方法,研究了高速钢低温多元共渗,不同的硫含量对共渗层组织和性能的影响。试验结果表明,从提高钻头的耐用度而言,共渗层中含硫量有一最佳值,含硫量过少或过多,效果都不好。作者发现硫对C、N元素起阻渗作用。并指出,在摩擦磨损过程中,工件寿命的提高,并不是在服役过程中硫向金属内部渗入和扩散所致,而是存在合理的含硫量,以及硫化物含量与碳氮化合物含量的合理配合。
In this paper, through the metallographic, X-ray structural analysis, the durability of the drill bit, wear resistance and friction torque and other test methods, the impact of high-speed steel multivariate co-infiltration, different sulfur content on the microstructure and properties of the co- The test results show that, in terms of improving the durability of the drill bit, there is an optimal sulfur content in the co-diffusion layer, and the sulfur content is too small or too much and the effect is not good. The authors found that sulfur has a barrier effect on C and N elements. And pointed out that in the process of friction and wear, the improvement of the life of the workpiece is not caused by sulfur infiltration and diffusion into the metal during service, but there is a reasonable content of sulfur and a reasonable content of sulfide and carbonitride Cooperation.