One material that isn't seen frequently in additive manufacturing is steel, and that's a disadvantage, as steel and its alloys are tough, strong, and versatile materials well-suited to harsh environments such as, for example, the sea. The US Navy has been exploring 3D printing for numerous applications, but it's still held back from developing things like major structural ship components because most available additive manufacturing metals aren't durable enough for the sea. But The University of Pittsburgh's Swanson School of Engineering will be researching and developing next-generation metals, particularly steel, for additive manufacturing thanks to a three-year, $449,000 award from the Office of Naval Research (ONR). Read more at