HEAT TREATMENT OF MEDIUM CARBON STEELS AND ANALYSE ITS PROPERTIES USING MODIFIED U.T.M

Abstract

This project report aims to study and calculate two of the most fundamental properties of a metal – it’s Young’s Modulus of Elasticity and hardness. For this experiment, the metal chosen was Steel on which different heat treatment and hardening processes were conducted. Hardness test helps in measuring the resistance of a material to plastic deformation on indentation.Hardness is a feature of a given object, and not a basic physical property.  The hardness values can be calculated on three different scales which helps in giving a better idea and precision about the material’s hardness.

The Young’s modulus of a material is an  important  attribute  to  understand  for  analyzing  how  the material will behave  when  the  force  is  applied.  In  this  experiment,  the  Young’s  Modulus  was  found  out by the application of  Euler’s  Buckling  Formula.  Buckling  is  the  loss  of  stability  that  occurs  when  the applied compressive loads exceed a certain value causing the shape of the bar to change. The variables are calculated using the Universal Testing Machine (UTM), which are then substituted to find Young’s Modulus for different cases. The experimental values shows that the young’s modulus of heat treated steels don’t vary much.