Work

Corrosion of a high-strength low-alloy steel produced by wire-arc additive manufacturing using the submerged arc

Year: 2025

Type: article

Abstract: The corrosion behavior of wire-arc additive manufactured (WAAM) and wrought high-strength low-alloy steel (HSLA) are studied. The submerged arc is used in this study because the deposition rate is high in comparison with other processes. A corrosion resistance evaluation was performed by using open circuit potential measurements, and electrochemical impedance spectroscopy (EIS) analysis, in an aqueous solution of NaCl 3.5 wt.%. Samples extracted from the upper, intermediate and lower region of the part manufactured by WAAM, in addition to the substrate, were evaluated. The bottom region of the WAAM sample showed the highest impedance modulus (2356 Ω.cm2) and the highest phase angle (50°), indicating its highest corrosion resistance in the saline medium. The bottom region of the sample showed the lowest hardness of 214-219 HV. This study demonstrates that it is possible to use a lower-cost HSLA steel in a WAAM production process, which is much faster to manufacture, in a corrosive environment.

Source: REM - International Engineering Journal

DOI: 10.1590/0370-44672024780067

Authors: Newton Sérgio Nascimento Mendes, Débora Ribeiro Lopes, Leandro João da Silva, Vanessa de Freitas Cunha Lins, Ruham Pablo Reis

Institutions: Universidade Federal de Uberlândia, Universidade Federal de Minas Gerais, Universidade Federal do Paraná

Language: English

Topic: Additive Manufacturing Materials and Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4412528277

FWCI:

Cites: 27

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Related to: 10