"The thermodynamic properties of iron-carbon-lead alloys are of interest for a variety of reasons related to steel production and recycling. Experimental procedures are described for a research program measuring the activity of lead in liquid iron and iron-carbon alloys. The solubility of lead in iron/iron-carbon alloys has been measured by equilibrating lead vapors with the iron/iron-carbon samples, in the temperature range of 1250° C -1600° C. The carbon composition of the iron-carbon alloys was in the range of 0 to 5.4 wt %. The solubility of lead increases with an increase in the temperature and decreases with an increase in the carbon content of the iron-carbon alloy. The measured solubility data for lead in molten iron/iron-carbon alloys were used to calculate the activity coefficient for lead using the Bale-Pelton unified interaction formalism as a function of alloy composition and temperature. The expression for In γ°Pb-C in the liquid region of the iron-carbon phase diagram as a function of temperature and carbon content is given by:
In γ°Pb-C = 13453/T + 0.061 = [ -37481/T +30.64] XC -[3912/T + 1.845] X2C
where γ°Pb-C is the Henrian activity coefficient of lead with respect to liquid lead as the reference state, T is the temperature in Kelvin and XC is the mole fraction of carbon"--Abstract, page iii.
Schlesinger, Mark E.
Robertson, D. G. C.
James, William Joseph
Materials Science and Engineering
M.S. in Metallurgical Engineering
University of Missouri--Rolla
viii, 44 pages
© 1997 Sandeep Malhotra, All rights reserved.
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b3641891~S5
Malhotra, Sandeep, "Solubility of lead in iron and iron-carbon alloys" (1997). Masters Theses. 1632.
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