Diffusion Coatings with the Participation of Titanium, Alumi¬nium and Silicon on Surface of the Steel 12X18H10T

Patterns of forming a multilayered diffusion coatings after complex saturation of titanium, aluminum and silicon to steel to improve heat resistance 12Cr18Ni10Ti were obtained and studied. The possibility of obtaining titanium-aluminum-silicon layers on steel 12Cr18Ni10Ti powder in containers with a gate in unpressurized conditions at temperature 1050 C and with duration 4 hours was studied. As initial components powders of titanium, aluminum, silicon, aluminum oxide, ammonium chloride were used.

Phase Composition, Microstructure and Mechanical Properties of AlCrCoCuFeNiх High-Entropy Alloys System

In this study, the AlCrCoCuFeNiх (where х = 0; 0,5; 1; 2 and 3) high-entropy alloys were prepared by vacuum arc melting and their phase composition, microstructures and mechanical properties were investigated. According to X-Ray analysis data, phase composition of alloys depending on Ni content. It was found that the structure transformed from mixture B2+FCC solid solutions into FCC solid solution with the increase of Ni content. Quantity of BCC phase solid solution is decreased with increasing Ni content, and, respectively, the quantity of FCC phase solid solution increases.