To Study the Behaviour of Materials using Conventional Quenching and Nano Quenching

The heat treatment processes are the controlled heating and cooling operations to change mechanical properties of material in solid state. Quenching is one of the heat treatment process where austenite phase is converted into Pearlite/Martensite/Bainite phases depending upon cooling rate The main aim of this study is to compare results of conventional quenching media and advanced nanofluid quenching media with help of microstructure and hardness values. In this work two carbon steels AISI 1040 and AISI 4130 are taken for case study. Quenching media for cooling like distilled water, brine solution, chilled water, cotton seed oil, engine oil, CuO based nano-fluids of different volume fraction are used to observe changes in microstructure and hardness values. The nanofluids are giving best results for materials AISI 4130 with highest hardness (value 759) and less cracks than chilled water.