Abstract
Equilibrium grain boundary segregation levels have been measured on binary and ternary iron alloys with tin and sulphur over a wide temperature range, by means of two complementary techniques: interfacial energy measurements and Auger electron spectroscopy. Segregation levels derived from the Gibbs adsorption theorem applied to solid/solid interfaces are fully consistent with spectroscopy measurements. It is demonstrated that at lower temperatures, equilibrium multilayer segregation exists. The observations are treated in terms of a general theory of grain boundary adsorption, which is the analogue of the B. E. T. (Brunauer, Emmett & Teller 1938) multilayer gas adsorption theory for free surfaces, and which allows for both submonolayer and multilayer segregation at grain boundaries. Furthermore, this treatment provides a physical basis for an earlier empirical correlation between interfacial solute activity and the solid solubility limit.
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Dates
Type | When |
---|---|
Created | 18 years, 8 months ago (Dec. 15, 2006, 3:03 p.m.) |
Deposited | 4 years, 6 months ago (Feb. 20, 2021, 10:26 p.m.) |
Indexed | 2 weeks, 1 day ago (Aug. 12, 2025, 5:48 p.m.) |
Issued | 51 years, 9 months ago (Oct. 30, 1973) |
Published | 51 years, 9 months ago (Oct. 30, 1973) |
Published Online | 28 years, 7 months ago (Jan. 1, 1997) |
Published Print | 51 years, 9 months ago (Oct. 30, 1973) |
@article{1973, volume={335}, ISSN={0080-4630}, url={http://dx.doi.org/10.1098/rspa.1973.0121}, DOI={10.1098/rspa.1973.0121}, number={1601}, journal={Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences}, publisher={The Royal Society}, year={1973}, month=oct, pages={191–212} }