Laser additive manufacturing—a form of 3D printing that builds up parts layer-by-layer by melting and resolidifying metal powders—has ushered in a renaissance for scientists learning how to design unique structural materials. A new study led by Stony Brook University researchers sheds light on the connection between the corrosion behavior and underlying materials structure in laser additively manufactured 316L stainless steel—a corrosion resistant metal used widely in Naval applications. Using multimodal synchrotron X-ray techniques, the team uncovered new connections between printing parameters and the defect state in the material. This enables the researchers to map pathways for engineering an even better corrosion resistant printed alloy.
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Source: Phys.org