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Metals 2017, 7(4), 135;

Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System

Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstr. 20, 01069 Dresden, Germany
TU Bergakademie Freiberg, Institute of Materials Science, Gustav-Zeuner-Str. 5, 09596 Freiberg, Germany
Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
TU Dresden, Institute of Materials Science, 01062 Dresden, Germany
Author to whom correspondence should be addressed.
Academic Editor: Houshang Alamdari
Received: 20 December 2016 / Revised: 2 March 2017 / Accepted: 6 April 2017 / Published: 12 April 2017
View Full-Text   |   Download PDF [2879 KB, uploaded 12 April 2017]   |  


A single-phase solid solution is observed in quaternary and quinary alloys obtained from gold, copper, nickel, palladium and platinum. The lattice parameters of the alloys follow the linear rule of mixture when considering the lattice parameters of the elements and their concentration. The elements are a priori not homogeneously distributed within the respective alloys resulting in segregations. These segregations cause a large broadening of X-ray lines, which is accessed in the present article. This correlation is visualized by the help of local element mappings utilizing scanning electron microscopy including energy dispersive X-ray analysis and their quantitative analysis. View Full-Text
Keywords: solid solution; segregation; high entropy alloy; XRD line broadening solid solution; segregation; high entropy alloy; XRD line broadening

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Freudenberger, J.; Rafaja, D.; Geissler, D.; Giebeler, L.; Ullrich, C.; Kauffmann, A.; Heilmaier, M.; Nielsch, K. Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System. Metals 2017, 7, 135.

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