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Influence of experimental parameters on the composition of precipitates in metallic alloys
Virgile Gasnier1, Baptiste Gault, Hidenori Nako
1Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia.
Abstract:
We report on the change in the shape, size and composition of spherical precipitates, found in an Fe-Cu and an Al-Ag alloy, as the base temperature, pulsing mode and parameters are adjusted. In the case of the Al-Ag alloy, the difference in the evaporation field between precipitates and matrix can be minimised at low temperature, while in the Fe-Cu alloy minimal changes are observed within the range of experimental conditions investigated. Comparison with transmission electron microscopy shows that some experimental conditions yield accurate precipitates size, while others enable reaching accurate composition measurements.
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