Chemical Engineering - Chemical Engineering Basics - Discussion


Pick out the correct statement.

[A]. Hot worked materials are subjected to annealing to remove internal stresses.
[B]. Annealing of steel hardens it slightly
[C]. Normalising of a material induces stresses.
[D]. Tempering of a material improves ductility & toughness but reducess hardness & brittlenes.

Answer: Option D


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