Understanding how dislocations (line defects in the crystal structure) occur when 3D-printing metals has been unclear to materials scientists. Understanding when and how dislocations form in ...

For decades researchers have studied materials from structures to see why and how they fail. Before catastrophic failure, there are individual cracks or dislocations that form, which are signals that ...

Researchers used Argonne's Advanced Photon Source to capture how the microstructure of metals evolves in real time during 3D printing. The findings could pave the way for advanced manufacturing of ...

Engineers devised a new method for designing metals and alloys that can withstand extreme impacts, which could lead to the development of automobiles, aircraft and armor that can better endure ...

RECENTLY, several studies of dislocations in face-centred cubic metals by the method of transmission electron microscopy have been reported. Of the body-centred cubic metals, however, only iron has so ...