XIN, D.; AlfyorovО.; IVCHENKO, O.; DUMANCHUK, M. STUDY ON THE ELECTRO-SPARK DEPOSITION PROPERTIES OF SKH51 TRANSITION COATING IN COMPOSITE GRADIENT COATING. Bulletin of Sumy National Agrarian University. The series: Mechanization and Automation of Production Processes, n. 4 (54), p. 8-15, 27 Dec. 2023.