1. AVALIAÇÃO DA INFLUÊNCIA DO TEMPO DE DEPOSIÇÃO NA RESISTÊNCIA À CORROSÃO DE FERRAMENTAS DE AÇO REVESTIDAS COM NÍQUEL DUPLEX.
- Author
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Sidegum, Natasha, Felix Scheffel, Leonardo, Zorzanello, Bruna, Dal Pont Morisso, Fernando, Pandolfo Carone, Carlos Leonardo, Trindade Oliveira, Cláudia, Raquel Kunst, Sandra, and Taís Führ, Luciane
- Subjects
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TOOL-steel , *SCANNING electron microscopy , *CORROSION resistance , *ENGINEERING laboratories , *FACTORIES , *STEEL walls - Abstract
Duplex nickel coating is used to provide corrosion resistance in steel tools. Proportion of bright nickel and semi-bright nickel coating important for its performance, and varies mainly with the deposition time. Thus, the objective of this work is to evaluate the influence of the thickness of the duplex nickel coating on the corrosion resistance of steel tools. For that, a study was carried out in the laboratory and in an industrial plant with different deposition times. The duplex nickel layers were characterized for corrosion by means salt spray, thickness measurement and potential difference by step test and morphology by scanning electron microscopy. The best corrosion resistance result occurred with semi-bright nickel deposition times for 7 minutes and bright nickel for 3 minutes. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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