Abstract
17Cr2Ni2MoVNb steel is a new type of gear steel in the automotive industry; the rolling contact fatigue behavior is not well documented. In this study, some microscopic analysis methods (optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffractometer (XRD), and energy dispersive X-ray analysis (EDS)) were used to characterize material microstructure and damage surface. In addition, rolling contact fatigue behavior was evaluated by Weibull curve. The results show that the size of austenite grain increased while the quenching temperature increased. Moreover, the samples with a quenching temperature of 1000 °C exhibited the maximum mean life of 7.33 × 105 cycles. In addition, the failure mode of quenched at 900 °C and 1100 °C were delamination, and pitting was the main failure mode of 1000 °C.
Highlights
Rolling contact fatigue (RCF) is a typical failure mode in the application of gears
The main purpose of this study is to demonstrate the effect of quenching temperature on microstructure and RCF behavior while using a self-designed rolling contact fatigue testing device
Micrograph of the 17Cr2Ni2MoVNb quenched temperature temperature has a great influence on martensite shape
Summary
Surface damage is a very complex phenomenon and the contact fatigue plays a fundamental role in the damage process [1]. The fatigue damages are influenced by various factors, including the lubrication oil, surface roughness, and mechanical properties of materials [2,3,4,5]. Numerous studies have focused on different heat treatment processes to improve mechanical properties in Fe-based alloys [6,7]. Ma [10] determined the fatigue resistance is affected by plastic deformation under different slip ratio conditions. Gallo [12] studied the relationship between roughness and fatigue characteristics of 40CrMoV13.9 notched components, with the most evident improvement being registered for the value of Ra = 0.15 μm
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
