Indentation hardness and modulus of electrochemically deposited triple protective-decorative Cu-Ni-Cr systemMaria Datcheva, Gergana Chalakova, Antonio Nikolov, Rayna Dimitrova, Roumen Iankov, Valentin Kamburov, Dessislava Guergova, Emilia Stoyanova and Dimitar StoychevMATEC Web Conf., 145 (2018) 02005DOI: https://doi.org/10.1051/matecconf/201814502005