Combinations of high strength and ductility are hard to attain in metals. Exceptions include materials exhibiting twinning-induced plasticity. To understand how the strength-ductility trade-off can be ...

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 ...

· Dislocation motion in crystals can occur when a shear stress act across the slip plane. This is illustrated for an edge dislocation. · The atomic structure is only adjusted in the region of the ...

Dislocations can save lives. This stems from the fact that the one-dimensional defects in a metal play an important role when the material deforms: for example, when a car body panel crumples in an ...

Stress-strain curve and dislocation configuration/evolution in MPEAs. (A) is a diagram of DDD simulations for MPEAs. Video showing the effect of lattice strain field on the dynamic evolution of ...

The diagram shows the location of atoms close to an edge dislocation line that runs back into the screen. The green circle outlines a group of atoms close to the dislocation line that have larger ...