Chemically induced solidification : a new way to produce thin solid-near- net shapes

In-situ observation of the solidification of high carbon steel (4 wt% C) through decarburization has been carried out as a feasibility study into reducing high power usage and high CO2 production involved in steel making. Decarburization has been carried out under both air and pure N2 atmospheres at temperature of 1573K (1300 °C) and 1673K (1400 °C). A solidified shell of around 500μm was formed with carbon concentrations reduced down to 1% in as short as 18s