Cornell scientists have discovered a way to enhance the strength and reliability of 3D-printed metals by controlling their microstructure. By adjusting alloy compositions—specifically manganese and iron—they disrupted columnar grain growth, leading to finer, stronger materials.
Using high-speed imaging at the Cornell High Energy Synchrotron Source, researchers captured the rapid phase changes occurring during printing. They identified an intermediate phase that refines grain structure, improving metal performance.
This breakthrough could revolutionize additive manufacturing, enabling stronger, more durable 3D-printed metal parts for industries like automotive and aerospace. Researchers believe these advancements will soon be seen in consumer products, making 3D metal printing a viable alternative to traditional manufacturing.
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