| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advancements in Steel Structural Refinement
|
| Presentation Title |
Microalloy Addition Strategies for Increased Yield Strength of Bearing Steels |
| Author(s) |
Mario Buchely, Justin Singleton, Viraj Athavale, Ashton Ventura |
| On-Site Speaker (Planned) |
Mario Buchely |
| Abstract Scope |
This study addresses the challenge of enhancing yield strength in wind turbine roller bearings by exploring microalloy additions. Utilizing predictive software, three trail compositions were recommended to improve AISI 4150 grade steel: 0.1 wt.% V microalloy, 0.05 wt.% V with 0.05 wt.% Nb, and high-Si with 0.1wt.%V microalloy. Microstructural analysis and hardness measurements were conducted on both as-cast and thermally cycled alloys. Subsequent compression testing and rolling trials provided insights into mechanical properties and hardenability. Results revealed superior hardenability in the V alloy compared to the V-Nb microalloy, and a remarkable 20% increase in yield strengths observed in the Si-V microalloyed steels versus the base material. This research demonstrates the efficacy of microalloy additions in addressing yield strength limitations in critical wind turbine components. |