Authors

Abstract

The purpose of this work is to study the effects of thermo mechanical
treatments to improve mechanical properties of the alloy steel (DIN 42 Cr Mo4), such
as tensile strength, toughness, and hardness. All mechanical factors affected by the
metallurgical changes in alloy like microstructure refinement and appearing new
phases are thoroughly discussed.
Heating was done in induction furnace at 1150oC and specimens were forged
in temperature of 1000oC but the forging process was done with different forging
loads (deformation percentage) with values of (800, 1000, 2500 and 4000 tons) with a
deformation percentages of (26%, 31%, 45% and 61%) respectively.