Low temperature copper solubilities in Fe-Cu-Ni
Miller, M.K., Russell, K.F., Pareige, P.J., Starink, M.J. and Thomson, R.C. (1998) Low temperature copper solubilities in Fe-Cu-Ni. Materials Science and Engineering A, 250, (1), 49-54. (doi:10.1016/S0921-5093(98)00535-8).
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Description/Abstract
An atom probe characterization of the copper concentration in the matrix of a model Fe–1.1at.%Cu–1.4% Ni alloy has been performed after isothermal ageing for various extended times at low temperatures. The matrix copper concentrations from material annealed at 500, 550 and 600°C are approximately 10% lower than the equilibrium values predicted from the Thermocalc™ program with the Kaufman database. Isothermal annealing for 4000 h at either 400 or 300°C was not sufficient to attain the equilibrium copper concentration. The kinetics of copper precipitation was investigated with the Starink-Zahra model derived for nucleation and growth reactions and a good fit with the atom probe data was found for an activation energy of 250 kJ mol−1.
| Item Type: | Article |
|---|---|
| ISSNs: | 0921-5093 (print) |
| Related URLs: | |
| Keywords: | solubility, atom probe field ion microscopy, Fe–Cu |
| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| Item ID: | 21671 |
| Date Deposited: | 01 Feb 2007 |
| Last Modified: | 25 Apr 2013 11:07 |
| Contributors: | Miller, M.K. (Author) Russell, K.F. (Author) Pareige, P.J. (Author) Starink, M.J. (Author) Thomson, R.C. (Author) |
| Date: | 1998 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/21671 |
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