|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced High-Strength Steels
||Influence of Cooling and Strain Rate on the Hot Ductility Behavior of High Manganese Steels within the System Fe-Mn-C
||Bernhard Steenken, Dieter Senk, Joao L. L. Rezende
|On-Site Speaker (Planned)
The hot ductility is a measure to determine the susceptibility to cracking during continuous casting (CC). Especially fully austenitic high manganese steel grades show low ductility values in the relevant temperature range of 700–1000°C. Due to the varied conditions in a CC-machine, the hot ductility of high manganese steel grades with varying manganese contents of 12, 18, 24, 30wt.-% and a carbon content of 0,3wt.-% for different strain rates(0.01 1/s and 0.001 1/s) and varying cooling rates (-3K/s and -7K/s) have been measured. With this aim the insitu hot tensile testing unit of the Department of Ferrous Metallurgy has been used. The specimens were investigated by using the SEM, EDX and light microscopy to determine the influence on the hot ductility as well as on the precipitates and phase formation. Also the thermodynamic modeling using ThermoCalc® has been conducted, in order to perform a comparison with the experimental results.
||Planned: Supplemental Proceedings volume