| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Tribological Performance of Lightweight Steel Alloys in Rolling-Sliding Contact |
| Author(s) |
Wenbo Wang, Chanaka Kumara, David Pienta, Harry M. Meyer, Dean T. Pierce, Jun Qu |
| On-Site Speaker (Planned) |
Wenbo Wang |
| Abstract Scope |
Lightweight components can reduce the weight of vehicles, which is a pathway to increased energy efficiency. AISI 52100 steel is commonly used in bearing components in the drivetrain where high strength, hardness, and durability are required. We evaluated the tribological performance of 52100 steel and modified variants of 52100 steel alloyed with aluminum (Al) and/or additional carbon (C) using a rolling-sliding bench test under the simulated conditions of an all-wheel drive SUV rear axle system. The goal of the alloy variants was to simultaneously reduce the density and increase the hardness and tribological performance of 52100 steel. To justify the weight reduction, satisfactory mechanical properties such as strength, fatigue and tribological behavior must be demonstrated. In this study, surface hardness, microstructure, friction, wear and surface morphology were measured before and after the test. Results are used to establish a relationship between the microstructure and tribological performance of lightweight bearing steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, |