TY  - JOUR
TI  - Investigation of the Effect of Tempering and Cryogenic Treatment on Mechanical Properties of Boron Steels
AB  - Boron steels are a group of steels 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 hot forging process, the microstructure examinations and mechanical tests of the materials were carried out. A group of materials was shallow cryogenically treated at -80 °C for 2 hours. Then, a different group of materials was austenitized at 890 °C and quenched, and then tempered at 400 °C for 90 minutes. In the last group of materials, after tempering heat treatment, cryogenic treatment was applied at -80 °C for 2 hours. Hardness and abrasion tests were carried out on the samples that were subjected to cryogenic treatment and tempering heat treatment. Microstructure analyzes were examined with scanning electron microscope (SEM) and optical microscope. Element distributions from different regions in the microstructure were analyzed with energy- dispersive X-ray spectrometry (EDS). The crystallite size of the materials was calculated by X- ray diffraction. The results showed that the wear resistance of cryogenic treat samples after tempering improved by 55% compared to the raw sample. The hardness value was measured as 613 HV1 by cryogenic treatment after tempering.
AU  - ALTUNTAŞ, GÖZDE
AU  - Bostan, Bülent
AU  - KAPLAN, ÖMER FARUK
DO  - 10.29109/gujsc.1271368
PY  - 2023
JO  - Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji
VL  - 11
IS  - 2
SN  - 2147-9526
SP  - 300
EP  - 308
DB  - TRDizin
UR  - http://search/yayin/detay/1184692
ER  -