Manganese and silicon activities in liquid carbon-saturated Mn-Si-C alloys

Abstract

The vapour pressure and activity of manganese were determined by a transportation method for carbon-saturated Mn-Si-C alloys with different Si contents. 108 individual experiments were carried out in a vertical graphite tube furnace, normally at 1500 °C. Modified Gibbs-Duhem relations were proposed to calculate the corresponding silicon activities. The present results agree well with similar studies for carbon-saturated Mn-Si-C alloys.