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# Metal melted with laser

## Appears In

                        - NIST Tile

This image shows the microscopic structure of a piece of metal that was hit with a focused, high-power laser. It’s a way for us to study the crystal structure that forms as the melted metal resolidifies. The image comes from NIST’s work to develop benchmark tests for additive manufacturing, a way of creating products by layering a material based on a 3D model.

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