Corrosion-Mechanical Wear of Nitrided Steels in Acidic Medium

• Published in: Materials science (New York, N.Y.) Vol. 58; no. 5; pp. 597 - 601
• Main Authors: Stechyshyn, M. S., Stechyshyna, N. M., Dykha, O. V., Martynyuk, A. V., Liukhovets, V. V., Lukyanyuk, M. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-03-2023; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion; Corrosive wear; Materials Science; Nitriding; Solid Mechanics; Structural Materials; Structural steels; Tribology; corrosion-mechanical wear; internal energy; anhydrous nitriding in a glow discharge; work of loading forces
• ISSN: 1068-820X; 1573-885X
• DOI: 10.1007/s11003-023-00704-3

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 ∆
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.