Solid particle erosion behavior of nanolaminated Cr 2 AlC films

In aero-engines particle erosion leads to a removal of vane and blade material particularly in the compressor section, reducing the engine efficiency and operation time. MAX phases were identified as a suitable material for erosion protection due to their good combination of metallic and ceramic properties. The successful application of Cr2AlC through High Power Impulse Magnetron Sputtering (HiPIMS) process on a frequently used engine material (IN718) results in a highly dense and well adherent coating. Understanding the erosion damage mechanism of this coated high temperature material is a key factor to counteract the damage and to increase the durability and reliability of engine components.