|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||High Performance Steels
||Characterization of Ductility and Microstructure Evolution in HSLA Microalloyed Steel during Continuous Casting
||Alyssa Stubbers, John Balk
|On-Site Speaker (Planned)
Characterizing precipitation and phase transformation in Nb, Ti, V containing HSLA steels during simulated continuous casting processes presents challenges due to limited size of precipitates (<30 nm) and difficulty observing phase transformations during heating. Phase transformation and grain size characterization is challenging due to tendency of austenite to quench into martensite and few methods to observe phase transformation in-situ. Manual microscopy methods to identify precipitation are time consuming and have difficulty locating significant numbers of precipitates that can be meaningfully analyzed. Through use of in-situ dilatometry, ex-situ EBSD, and SAXS, the evolution of microstructures and their impact on hot ductility is evaluated to pinpoint mechanisms governing high-temperature, low-ductility behavior in microalloyed HSLA steels.
||Characterization, Iron and Steel, Mechanical Properties