caa a22 4500 463225732 CHVBK 20180405153226.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1931-0 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1931-0 Studies on electrodeposition and corrosion behaviour of a Ni-W-Co amorphous alloy [Elektronische Daten] [Renato Santana, Ana Campos, Emanuelle Medeiros, Aldrighi Oliveira, Liana Silva, Shiva Prasad] A ternary alloy Ni-W-Co was electrodeposited and operational parameters in relation to its corrosion resistance and deposition efficiency were optimized. A 22 full factorial design was successfully employed for experimental design analysis of the results. By means of response surface analysis, the statistical model identified the following operating conditions for obtaining corrosion resistant alloy: 60mA/cm2 current density, 70°C temperature, 20rpm cathode rotation and 8.0pH. The alloy was deposited at 36% current efficiency, with an average composition of 70% Ni, 8% Co, 22% W and traces of boron and with E corr −0.508V and R p 4.56×104Ohm. The deposit obtained under these conditions had an amorphous character and showed good adherence, high corrosion resistance and presence of nodules on its surface. Electrochemical corrosion tests verified that the Ni-W-Co alloy had better corrosion resistance than similarly electrodeposited Co-W amorphous alloy. Springer Science+Business Media, LLC, 2007 Santana Renato Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Campos Ana Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Medeiros Emanuelle Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Oliveira Aldrighi Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Silva Liana Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Prasad Shiva Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9137-9144 0022-2461 42:22<9137 2007 42 10853 https://doi.org/10.1007/s10853-007-1931-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1931-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Santana Renato Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 700 1- Campos Ana Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 700 1- Medeiros Emanuelle Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 700 1- Oliveira Aldrighi Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 700 1- Silva Liana Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 700 1- Prasad Shiva Department of Chemical Engineering, Universidade Federal de Campina Grande, Post Box 10108, 58109-970, Campina Grande, Paraiba, Brazil aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9137-9144 0022-2461 42:22<9137 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer