|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Applications of Solidification Fundamentals
||Investigation of the Metatectic Reaction in Boron Containing Steels
||Kara Luitjohan, Matthew John M. Krane, Volkan Ortalan, David Johnson
|On-Site Speaker (Planned)
The U.S. government has issued a challenge to various automakers to increase the fuel economy of passenger vehicles to 54.5 mpg by 2025. One method to achieve this goal is through the use of advanced high strength steel, including boron containing steels. Boron containing steels are difficult to commercially produce due to a predicted metatectic reaction where solid delta-ferrite transforms to liquid and austenite upon cooling. However, this reaction and how various alloying elements affect the reaction are not well characterized. To control boron segregation along the length of the ingot, various alloys are levitation zone melted, and the resulting microstructures are characterized with scanning and transmission electron microscopy along with confocal scanning laser microscopy. These experimental results are compared to predicted phase diagrams and calculated solidification profiles.
||Planned: Supplemental Proceedings volume