Metall. Res. Technol.
Volume 116, Number 3, 2019
|Number of page(s)||6|
|Published online||10 April 2019|
A comparison of corrosion behaviors of additive manufacturing cobalt-chromium alloy in different solutions
College of Ecological Environment and Urban Construction, Fujian University of Technology,
350118, PR China
* email: email@example.com
Accepted: 10 January 2019
The corrosion behavior of selective laser melted CoCr alloy in 0.9% NaCl, phosphate buffer solution (PBS) and artificial saliva (AS) solutions were studied by using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy. The potentiodynamic polarization tests were shown the lowest current density of the CoCr alloy in 0.9% NaCl, while the highest one was measured in PBS solution. CoCr alloys were passivation in all solutions, and the protective scale formed on CoCr alloy in 0.9% NaCl solution possessed the superior corrosion resistance according to EIS results.
Key words: biomaterial / corrosion / CoCr alloy / selective laser melting / EIS
© EDP Sciences, 2019
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