Explain heat treatment of brass.
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Like pure copper, brasses are also subjected to recrystallization annealing treatment after cold working. By annealing above recrystallization temperature, the original degree of ductility and toughness can be restored in the cold-worked brass. Annealing may be carried out by heating the cold-workedRead more
Like pure copper, brasses are also subjected to recrystallization annealing treatment after cold
See lessworking. By annealing above recrystallization temperature, the original degree of ductility and
toughness can be restored in the cold-worked brass. Annealing may be carried out by heating
the cold-worked brass at a temperature between 650C and 700C, followed by cooling at a suitable rate. Controlled atmosphere is often used while annealing to avoid excessive oxidation
and discolouration of the surface of the brass. A low temperature (300C) annealing heat
treatment may be given to brass articles for about one hour to remove internal stresses. Such
treatment reduces the tendency for season cracking. By low temperature annealing, tensile
strength is maintained within acceptable limits.