Investigation of the Effect of Tempering and Cryogenic Treatment on Mechanical Properties of Boron Steels

Boron steels are a group of that stand out with their high wear resistance and hardenability. In this study, 33MnCrB5-2 boron steel was shaped by applying hot forging process. After the process, microstructure examinations mechanical tests materials were carried out. A cryogenically treated at -80 °C for 2 hours. Then, different austenitized 890 quenched, then tempered 400 90 minutes. last materials, after tempering heat treatment, cryogenic treatment applied Hardness abrasion on samples subjected to treatment. Microstructure analyzes examined help scanning electron microscope (SEM) optical microscope. Element distributions from regions in analyzed energy-dispersive X-ray spectrometry (EDS). The crystallite size calculated diffraction. results showed hardness value gave higher values compared other samples.