Comparative Study of Surface Hardened Automobile Gears

As my research concerned it is basically concentrate on “To study the effect of case hardening treatment on
the structure and properties of automobile gears, which consist of carburizing process which is a case
hardening process.” Case hardening is the process of hardening the surface of metal, often low carbon steel
by infusing elements into the metal surface forming a hard, wear resistance skin but preserving a tough and
ductile applied to gears, ball bearings, railway wheels. Comparative study of the following gears viz. grade
of EN353, SAE8620 and 20MNCR5 are done in my research. The basic study in my research is Procedural
study, Micro structure study, Testing of hardness gradient of automobile gears.