Effects of Cryogenic Treatment on the Microstructure, Hardness, and Wear Behavior of 1.2436 Steel

Authors : Nursel ALTAN ÖZBEK

Pages : 100-107

View : 35 | Download : 11

Publication Date : 2023-04-30

Article Type : Research Paper

Abstract :This study investigates the affects of cryogenic treatment on the hardness, wear resistance, and microstructure changes of 1.2436 steel. In the study, shallow at −80 °C for 6 hours and deep cryogenic treatment at −180 °C for 6 hours were applied on quenched steel samples. In addition, the steel pieces were exposed to tempering at 300 °C for 2 hours at different stages. In the microstructure images, it was seen that the cryogenic treatment provided a more homogeneous carbide distribution in 1.2436 steel. The cryogenic treatment also substantially affected the wear resistance and hardness of 1.2436 steel. Deep cryogenic treatment provided higher hardness and wear resistance than shallow cryogenic treatment. The paramount hardness was acquired in the sample in which the tempering heat treatment was carried out between quenching and cryogenic treatment, and the paramount wear resistance was acquired in the piece in which the tempering heat treatment was performed after quenching and cryogenic treatment.
Keywords : Sığ kriyojenik işlem, derin kriyojenik işlem, 1 2436 çeliği, sertlik, mikro yapı, aşınma

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