CAF Defects in Solids

Low angle grain boundary is an array of aligned edge dislocations. This type of grain boundary is called tilt boundary (consider joint of tw...

External Surfaces: Surface atoms have have unsatisfied atomic bonds, and higher energies than the bulk atoms ⇒ Surface energy, γ (J/m2) • Su...

Dislocations shown in previous slide are edge dislocations, have Burgers vector directed perpendicular to the dislocation line. There is a s...

To describe the size and the direction of the main lattice distortion caused by a dislocation we should introduce socalled Burgers vector b....

Weight % to Atomic %: Atomic % to Weight %: Dislocations are linear defects: the interatomic bonds are significantly distorted only in the i...

Interstitial solid solution of C in α-Fe. The C atom is small enough to fit, after introducing some strain into the BCC lattice. Factors for...

Factors for high solubility: Atomic size factor - atoms need to “fit” ⇒ solute and solvent atomic radii should be within ~ 15% Crystal struc...