Investigation of the Structural, Mechanical and Tribological Properties of Plasma Electrolytic Hardened Chromium-Nickel Steel

This paper investigates how electrolytic plasma hardening (PEH) bears upon the changes in phase structural and tribological properties of steel 0.34C-1Cr-1Ni-1Mo-Fe, which is widely used manufacturing highly stressed gears. The samples 0.34C-1Cr-1Ni-1Mo-Fe went through PEH an electrolyte containing aqua solution 20% calcined soda (Na2CO3) 10% carbamide ((NH2)2CO). initial stated to have following components: a lamellar pearlite with volume share 35%, ferrite-carbide mixture ~45% fragmented ferrite ~20%; after it contains lath-lamellar martensite, fine particles cementite M23C6 carbide. durability was found rise by 3.4 times its microhardness increased 2.6 times. curve-tension crystal lattice established be like plastic (? = ?pl) does not cause formation microcracks material.