Studies on Effect of Microwaven Heat Treatment on Mechanical Properties of Steel

In this paper, Author studies about the mechanical properties like Tensile strength, yield stress and elongation for different steels such as low carbon steel and mild steel and various heat treatments to find out the effect of annealing, quenching and normalizing on material properties through testing on using Universal Testing Machine UTM. Low carbon steel is easily available and cheap having all material properties that are acceptable for many applications. Heat treatment on low carbon steel is to improve ductility, to improve toughness, strength, hardness and tensile strength and to relive internal stress developed in the material. Effect of various types of heat treatment on fracture toughness and hardness is also analyzed. Optimum heat treatment strategy for commercial steel appears to be tempering in the 900ºC temperature range, to get the best combination of high toughness and high hardness. After that heat treated samples are used for testing of different material properties. Result shows which heat treatment will be better for improving material properties of mild steel.