To develop the commercial applicability of Wire-Arc Additive Manufacturing (WAAM), there is a crucial need to understand the corrosion behaviour of the fabricated materials for industry acceptance. It is well-known that WAAM process has a complex thermal process, resulting in unique microstructures and material surfaces. The current studies on corrosion resistance in the WAAM process are focused on Stainless Steels, Steels and Nickel-based alloys due to the potential industrial applications. Hence, a comprehensive review of the resulting microstructural evolution and corrosion resistance of the WAAM manufactured Stainless Steels, Steels and Nickel-based alloys has been presented.

It was found that the understanding of the corrosion resistance and corrosion testing needs further development for the mechanisms that the alloys are susceptible to. Development of various standardized corrosion testing for the metal alloys is necessary to optimize WAAM applications based on industrial requirements.

Subject
Test methods, Materials, Corrosion resistant alloys, Manufacturing, Materials performance, Microstructure, Nickel based alloys, Heat, Steel, Pitting, Corrosion resistance, Stainless steel, Wrought metals
Keywords:
Wire-Arc Additive Manufacturing, Corrosion Mechanisms, Metals, Material Performance
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2022
Association for Materials Protection and Performance (AMPP)
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