A metal is comprised of many individual crystals, or grains. These crystals are held together by electrons in the same way that electrons hold the atoms within each crystal together. For more on this ...

Taking a cue from the structural complexity of trees and bones, engineers have created a way to 3D-print two types of steel in the same circular layer using two welding machines. The resulting ...

A new alloy combines the best of the refractory metals with cutting-edge engineering. Even these extremely tough metals can ...

Metals consist of stacked layers of tightly packed, interacting atoms arranged in geometric patterns. Each of these atoms contains a small number of loosely held electrons in its outer shell. When ...