Protection of a Rhenium–Ruthenium VZhM10 Nickel Superalloy from Oxidation in the Temperature Range 1150–1300°C

The report presents the results of heat-resistance tests of single-crystal samples made of a rhenium–ruthenium VZhM10 nickel superalloy with a two-layer heat-resistant condensation–diffusion ion–plasma SDP-41 + VSDP-16 coating in the temperature range 1150–1300°C. The ion–plasma coating is shown to ensure the protection of the alloy from catastrophic oxidation at temperatures up to 1300°C for a short time of 10–25 h. The loss rates of the specific mass of VZhM10 alloy samples with the coating and without it are determined in the temperature range 1150–1300°C using tests for up to 100 h. The influence of the coating on the long-term strength of the 〈001〉 VZhM10 alloy single crystals has been estimated at temperatures of 1150, 1200, 1250, and 1300°C.