When bad makes good: Defects strengthen 3D-printed material

Sometimes it’s good to be a little bad.

Cornell researchers found a counterintuitive way of improving 3D-printed metal alloys. By deliberately introducing more defects into the printing process, followed by a post-processing treatment that uses high temperature and high pressure to change the material’s microstructure, they turned the defects into assets, resulting in a stronger, more ductile metal product.

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