Influence of alloying on the free energy of austenitic grain boundaries in steel
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Abstract
We compute the free energy of austenitic grain boundaries for steels whose carbon content is equal to 0.2%, for chrome-manganese steels with various concentrations of molybdenum and phosphorus, and for chrome-manganese-molybdenum steel. On the basis of regression analysis, we develop an interpolational model which enables one to estimate (both qualitatively and quantitatively) not only the effects of each element on the free energy of grain boundaries but also changes in these effects caused by the presence of other elements with different surface activities. It is shown that changes in the influence of alloying elements on the boundary energy of multicomponent systems can be explained by the interaction of different elements.
Keywords
Manganese Vanadium Molybdenum Cerium Surface ActivityPreview
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References
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