Fine structure and phase composition of NiCrAlY sputtered coatings

Structure of sputtered high-temperature coatings of composition (wt %) 20–22 Ni, 11–13 Cr, 0.3–0.5 Al, and the balance Y was studied by transmission electron microscopy. The information obtained may be useful in an analysis of the deposition process and operating damages of such protective coatings.