Formation of Cr-Zr gradient layer by magnetron sputtering and ion mixing Egor B. Kashkarov, Dmitrii V. Sidelev, Maya R. Rombaeva, Viktor N. Kudiiarov and Anton Lomygin MATEC Web Conf., 298 (2019) 00088 Published online: 18 November 2019 DOI: 10.1051/matecconf/201929800088