The effects of copper addition on phase composition in (CrFeCo)1-yNy multicomponent thin films

The Cantor alloy CrFeCoMnNi is generally fcc structured, but moderate changes in the composition can have a large influence on phase formation. aim of this study was to understand brought low-nitrogen-containing (CrFeCo)1-yNy thin films with y = 0.19 addition copper, an interesting metal terms atomic size and nitride formation enthalpy. (CrFeCoCux)1-yNy were grown by reactive magnetron sputtering. amount copper increased from x 0 0.15 competitive Without Cu, two-phase + bcc obtained. Cu found stabilize structure despite fact that as pure fcc. Nanoindentation tests showed slight increase hardness initial 11 GPa 13.7 ± 0.2 GPa. occurrence pile up opposed cracking indication film’s ductility.