Heating above the critical or re-crystallization temperature, then controlled cooling of metal, glass, or other materials to eliminate the effects of cold-working, relieve internal stresses, or improve strength, ductility, or other properties.
Softest possible state of any material. Annealing, Full -Heat treating process wherein metal is heated to a temperature above its critical range. held at that temperature long enough to allow full recrystallization, then slowly cooled through the critical range. Annealing removes working strains, reduces hardness, and increases ductility.
A metalgraphic process in which a ball is softened. An annealed ball can be ground, drilled, filed and welded. Heated to remove or prevent internal stress; free from internal stress by heating and gradually cooling; toughened or tempered.