Editing Crystal structure (section)

=== Dislocations ===
{{Expand section|date=August 2022}}
{{main|Dislocation}}
Dislocations in a crystal lattice are line defects that are associated with local stress fields. Dislocations allow [[Shear stress|shear]] at lower stress than that needed for a perfect crystal structure.<ref>{{cite book |title= Mechanical Behavior of Materials |last= Courtney |first= Thomas |year= 2000 |publisher= Waveland Press |location= Long Grove, IL |isbn= 978-1-57766-425-3 |pages= 85}}</ref> The local stress fields result in interactions between the dislocations which then result in strain hardening or [[cold working]].