Corrosion-Mechanical Wear of Nitrided Steels in Acidic Medium

The physicochemical and tribological characteristics of structural steels nitrided in anhydrous medium under corrosion-mechanical fracture in an acidic model medium are carried out. The flexibility of nitrided layers adaptation to changes in external load conditions is explained by minimizing the increment E/A ratio. Minimization mechanisms are different. Under elastic-plastic contact the processes of nitrided structural steels fracture become stable as a result of dense protective films formation on the surface. Under plastic contact it occurs due to the increase of the efficiency of the debris-layer barrier effect. The influence of temperature and sucrose on the intensity of surface fracture is found out.

Automated summary

The physicochemical and tribological characteristics of structural steels nitrided in anhydrous medium under corrosion-mechanical fracture in an acidic model medium are studied. The flexibility of nitrided layers adaptation to changes in external load conditions is explained by minimizing the increment E/A ratio. Different minimization mechanisms are identified. Dense protective films formation on the surface stabilizes the fracture processes of nitrided structural steels under elastic-plastic contact. Increase in the efficiency of the debris-layer barrier effect leads to stable fracture under plastic contact. The influence of temperature and sucrose on the intensity of surface fracture is also investigated.