Correlation of surface segregation with bulk diffusion for binary metal alloys |
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| Authors: | Dennis G. Swartzfager Michael J. Kelley |
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| Affiliation: | Central Research and Development Department, E.I. du Pont de Nemours & Co., Inc., Wilmington, DE 19898, USA;Engineering Technology Laboratory, Experimental Station, E.I. du Pont de Nemours & Co., Inc., Wilmington, DE 19898, USA |
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| Abstract: | Previous treatments of surface segregation in metal alloys have all failed in some systems, due either to inadequacies in the theories or in the thermochemical data. A new model is proposed here using only alloy diffusion data. Predicted surface compositions agree quantitatively with ISS measurements and qualitatively AES results. |
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