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在45钢离子渗氮表面,用低温离子渗硫技术形成具有良好固体润滑作用的渗硫层。采用 SEM+EDX和 XRD研究了渗层的组织结构。采用销盘式磨损试验机在油润滑条件下,对原始、渗氮、渗硫以及渗氮渗硫复合处理表面进行了抗擦伤性能及耐磨性能的系统研究,并采用 EDX和 AES分析了摩擦表面边界润滑膜的成分。结果表明,渗硫和渗氮处理均只能在低速条件下提高表面的抗擦伤性能,而复合处理能在各种速度条件下显著提高抗擦伤性能。复合处理表面的耐磨性也明显优于渗硫和渗氮表面,但其对磨面的磨损却更为严重,甚至高于原始表面。
In 45 steel ion nitriding surface, low temperature ionized sulfur infiltration technology to form a good solid lubricating effect of the sulfurized layer. The microstructure of the disseminated layer was studied by SEM + EDX and XRD. In the condition of oil lubrication, a pin-plate abrasion tester was used to systematically study the anti-galling property and wear resistance of the original, nitrided, infiltrated and nitriding-sulfurized composite surfaces. EDX and AES Composition of friction surface boundary lubrication film. The results show that both sulfur and nitriding can only improve the scratch resistance of the surface at low speed, while the composite treatment can significantly improve the anti-galling performance under various speed conditions. The wear resistance of the composite surface is also significantly better than the sulfurized and nitrided surface, but its wear on the surface is more serious, even higher than the original surface.