Residual Stress And Wear Studies Of Deep Cryogenically Treated SAE 52100 Bearing Steel
R. Sri Siva, M. Shunmuga Priyan
Volume 4, Issue 1, Page 48-54, Year 2019 | DOI: 10.5185/amp.2019.1430
Cryogenic treatment, residual stress, wear, micro-hardness, corrosion
The effect of cryogenic treatment on the enhancement of tensile residual stress resistance in the SAE 52100 bearing steel was studied using X-Ray diffraction technique. The tensile residual stress behaviour is assessed by X-Ray diffractometer as per the ASTM standard E2860-12. Refinement of carbide particle by deep cryogenic treatment (DCT) is often proposed as the improvement for the residual stress in the bearing steel. X-Ray diffractometer technique include the identification and quantitative analysis of crystalline chemical compounds (phase analysis and quantification, e.g. retained austenite determination), residual macro- and micro-stress analysis. It was found that the tensile residual stress was increased by +30Mpa due to deep cryogenic treatment when compared with that of conventional heat treatment (CHT). Moreover, the hardness of the DCT samples shows an improvement of 15% over the CHT samples. Copyright © VBRI Press.