| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Influence of Rare Earth Ce Additions on Microstructure and Mechanical Properties of HSLA Steels |
| Author(s) |
Richard P. Oleksak, Martin Detrois, Paul D. Jablonski, Kyle A. Rozman, Ömer N. Doğan |
| On-Site Speaker (Planned) |
Richard P. Oleksak |
| Abstract Scope |
Rare earth elements Ce and La have a long history in iron and steelmaking, however, despite the potential benefits, their usage has declined in the last several decades. More recently, the cost of these elements has decreased significantly, while their influence on steel processing and properties are becoming better understood. Integrating these inexpensive rare earths into high volume steel applications offers the opportunity not only for improved steels but also for an improved outlook for rare earth production strategies. Toward this end, herein we assessed the effect of minor Ce additions on properties of steels relevant to energy transport infrastructure important for achieving decarbonization goals. Optimal Ce additions to experimental high strength pipeline steels produced slight grain refinement, small increase in strength, and significantly improved transverse impact toughness. Ongoing work involves assessing effect of Ce additions to ultra-high strength 4340 steel and potential influence on hydrogen embrittlement behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Other |