Investigation on mechanical properties of heat treated low carbon steel

The heat treatment method was used in early 1000 B.0 when the artifact of
crude iron was found. Heat treatment is a method used to alter the physical, and
sometimes chemical, properties of a material usually ductility, hardness, yield
strength, and impact resistance. Heat treatment involves the use of heating or
chilling, normally to extreme temperatures, to achieve a desired result such as
hardening or softening of a material.. There are many types of furnace are used for
heat treating but the basic types of furnace are batch furnace and continuous
furnace. Selection of .a material for specific application required a full understanding
of its mechanical properties including tensile properties, elastic and plastic behavior,
brittle fracture, strength and hardness. The purpose of this study is to obtain the
most optimum value of UTS (ultimate tensile strength), Y (yield strength) and strain
by using suitable heat treatment method such as quenching, hardening and
tempering. After heat treatment process, these metals were test using tensile test
machine to investigate the mechanical properties. Evaluation was based on the value
of UTS (ultimate tensile strength), Y (yield strength) and strain. It was found out
that the annealing process was the best method of heat treatment to produce the
most optimum value of UTS (ultimate tensile strength), Y (yield strength) and
strain. The finding suggest that there are should used other method of heat-treatment
such as case hardening, carbon nitriding and so on to understand more about
mechanical properties of low carbon steel or mild steel and how to change the
microstructures in metal or to improve the mechanical properties of mild steel.