This study aims to investigate the electrochemical and corrosion properties of super duplex stainless steel (SDSS) cladded low carbon steel (LCS) manufactured using powder bed fusion selective laser melting (PBF-SLM) technique in 3.56 wt.% NaCl aqueous solution. The PBF-SLM technique involves spreading of a thin layer of SDSS powder on a LCS substrate followed by localized melting with Yb - fiber laser. Crucial parameters of the PB-SLM process such as laser power, laser-scanning speed, and layer thickness were optimized and fine-tuned to achieve the best possible bonding between the clad material and the substrate. Electrochemical and corrosion properties were tested via. Open circuit potential (OCP) monitoring, electrochemical impedance spectroscopy (EIS), and cyclic polarization (CP) in the said electrolyte.

Subject
Circuits, Electrochemical impedance spectroscopy, Materials, Substrates, Roughness, Melting, Surfaces, Density, Lasers, Powders, Pitting, Corrosion resistance, Corrosion potential
Keywords:
Powder bed fusion selective laser melting (PBF-SLM), additive manufacturing, scanning electron microscopy (SEM), low carbon steel, super duplex stainless steel, corrosion
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2019
Association for Materials Protection and Performance (AMPP)
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