Evaluation of Hardness of AISI 1045 Steel Rods Tested by Borided and Inducted

Temperature has a significant impact on the properties and structures of materials. This research used boriding and subsequent induction hardening and tempering of AISI 1045 medium carbon steel rod samples in order to improve the hardness of the surface layer. Induction coils are used to add boron paste components to the steel rods' surfaces. Testing is used to assess the hardness and microstructure of the treated steel rods. A total of 30 samples are tested at different temperatures, dwell durations, and feed rates to determine the hardness of the treated specimens. As part of the tempering process, Taguchi Optimization is carried out in a furnace to determine the best parameter values for eliminating internal stresses. Two types of instruments are utilised to examine materials for their chemical composition as well as their microstructure: the Scanning Electron Microscope (SEM) and the Optical Microscope. As a result of the emergence of martensitic structures, hardness values have risen. Lower hardness values are obtained at temperatures between 800 °C and 850 °C, whereas 690 HV is the maximum hardness measured at 1208 °C. Increased temperature increases AISI 1045 steel's surface hardness, according to lab testing. According to the compared results, AISI 1045 steel that has been boron and induction treated has a higher hardness value than AISI 1045 steel that has been induction treated.