Thermodynamic measurements of b.c.c. Cr-Mn solid solutions at 1373 K

Ranganathan, S and Hajra, JP (1988) Thermodynamic measurements of b.c.c. Cr-Mn solid solutions at 1373 K. In: Scripta Metallurgica, 22 (1). 13 -16.

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Abstract

Thermodynamics of Cr-Mn alloys have been studied by Eremenko et al (l) using a fused salt e.m.f.technique. Their results indicate positive deviations from ideality at 1023 K. Kaufman (2) has independently estimated negative enthaipy and excess entropy for the b.c.c. Cr-Mn alloys, such that at high temperatures, the entropy term predominates over the enthalpy term giving positive deviations from ideality. Recently the thermodynamic properties of the alloys have been measured by 3acob (3) using a Knudsen cell technique in the temperature range of 1200 to 1500 K. The results indicate mild negative deviations from ideality over the entire composition range. Because of the differences in the reported results and Mn being a volatile component in the alloys which leads to surface depletion under a dynamic set up, an isopiestic technique is used to measure the properties of the alloys.

Item Type:	Journal Article
Publication:	Scripta Metallurgica
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	11 Oct 2010 09:35
Last Modified:	11 Oct 2010 09:35
URI:	http://eprints.iisc.ac.in/id/eprint/33043

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