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How Additive Manufacturing Can Aid the Oil, Gas, and Chemical Industry: Corrosion-Proofing by Infusion of Interstitial Solute, Exemplified for Alloy 22
AM (additive manufacturing) is a rapidly developing field for rapid prototyping and producing near-net-shape products that are impossible to produce by conventional methods. In this article, we prove the concept of corrosion proofing of AM alloy parts by low-temperature infusion of interstitial solute for the example of Alloy 22 parts made by LPBF (laser powder-bed fusion). For post-processing of these parts, we employed our newly developed process of LTNC-SRP (low-temperature nitrocarburization by solid-reagent pyrolysis). The results highlight how this new process can specifically address problems inherent to alloy parts made by AM.