Abstract：In order to study the decarburization effect of Fe-C alloy strips in Ar-CO-CO2 atmosphere, the decarburization atmosphere was determined by a combination of thermodynamic analysis and experiments. The Fe-C alloy strips were decarburized in mixed 66.25%Ar-25%CO-8.75CO2 gas. Taking the Fe-C alloy strip with an initial carbon content of 4.2% as the research object, the effects of different decarburization temperature, strip thickness and decarburization time on the decarburization effect were studied. The results show that for 2mm thFe-C alloy strips which were decarburized for 60 minutes at 1293K, 1353K, and 1413K, the average carbon content were 2.748%, 1.870%, and 1.134%, respectively. The Fe-C alloy strips with thicknesses of 1mm, 1.5mm and 2mm were decarburizated at 1413K for 60min,the average carbon contents were 0.32%, 0.92% and 1.05% respectively. It has been proved that increasing the decarburization temperature, prolonging the decarburization time and reducing the thickness of the strip all help to improve the decarburization effect .
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2020, Vol. 55 
