A review of the corrosion behavior of conventional and additively manufactured nickel–aluminum bronze (NAB) alloys: current status and future challenges

Abstract

Corrosion behavior of conventionally produced and additively manufactured NABs are reviewed. The uniform and localized types of corrosion of NABs are discussed. The corrosion mechanisms for NAB alloys are discussed. Suggestions for future research on traditional and AMed NABs are offered.

Corrosion response of steels fabricated through arc directed energy deposition additive manufacturing: a review

“…In the DED process, a focused energy source such as a laser, electron beam, or plasma arc is harnessed to melt metal powder or metal wire in the presence of an inert shielding gas. 1 Precise control of the nozzle (powder/wire feeding system), guided according to the CAD model of the component, is facilitated by either a robotic arm or a CNC-gantry system, enabling the fabrication of each cross-sectional layer in a sequential fashion. 1,23 In the case of powder-based DED, commonly referred to as direct metal deposition (DMD), metal powders are directly dispersed onto a concentrated high-energy source, resulting in fusion of the powder and layer-by-layer construction of the part through molten droplets.…”

“…1,23 In the case of powder-based DED, commonly referred to as direct metal deposition (DMD), metal powders are directly dispersed onto a concentrated high-energy source, resulting in fusion of the powder and layer-by-layer construction of the part through molten droplets. 1…”

“…Additive manufacturing (AM), according to the American Society for Testing and Materials (ASTM F2793-12A), involves fabricating objects in a layer-by-layer fashion using 3D model data, in contrast to subtractive manufacturing methods. 1 The expiration of key patents in AM technology in recent years has spurred significant investments in advancing various AM modalities capable of producing high-quality 3D near- net -shape metallic components. This has facilitated the widespread adoption of the technology across different industries.…”

“…These pioneering advancements provide several notable benefits, including the capacity to manufacture intricate and/or customized designs, efficient material recycling, reduced reliance on tooling, and offering a cost-effective solution. 1…”

“…AM technologies have proven effective in producing 3D metallic components from a range of metals and alloys, such as aluminum alloys, 3,4 titanium alloys, 5 magnesium alloys, 6 copper alloys, 1,7 superalloys 8 and steels. 9 Steel, in particular, exhibits a set of demanding characteristics, including favorable corrosion resistance, excellent mechanical properties ( e.g.…”