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 reduces hardness & brittleness
Correct Answer: Tempering of a material improves ductility & toughness but reduces hardness & brittleness ✔
Last Updated: February 10, 2019