Hydrogenated amorphous carbon as protective coating for a forming tool J.F. Martinatti, L.V. Santos, N.C. Cruz and E.C. Rangel Eur. Phys. J. Appl. Phys., 56 2 (2011) 24014 Published online: 28 October 2011 DOI: 10.1051/epjap/2011110166