Lab tests revealed maraging steels' hardness varies by print direction, indicating application-specific performance implications.
Maraging steels are a class of high-strength iron alloys of very low carbon content and in many cases, the materials of choice in applications that require high corrosion resistance. In this paper, mechanical tests of hardness and electrochemical characterization of maraging steel obtained by the 3D-printed were carried out. The obtained results indicate that samples printed in the H and 45° directions exhibited higher hardness than those printed in the V direction. Corrosion induced reduction in hardness was more severe in specimens heat-treated between 480 °C and 600 °C versus as-printed samples.
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Alar et al. (2025) studied this question.
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