Dissemination of IT for the Promotion of Materials Science (DoITPoMS)



After this TLP. You should be able to:

  • Understand how new dislocations are generated from a Frank-Read source
  • Calculate the critical shear stress required to operate a Frank-Read source
  • Describe the interactions between two dislocations
  • Explain the origin of solute-solution strengthening in terms of the interactions between the strain fields of dislocations and solute atoms
  • Describe the formation of Lomer lock
  • Understand how jogs and kinks are formed, and their significance in work hardening
  • Understand the significance of Frank-Read source, Lomer lock, jogs and kinks in forest hardening
  • Describe stage 1 and 2 in the deformation of a single crystal
  • Explain the process of grain boundary hardening in a poly-crystal