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Dissolution processes and grain growth behaviour in a supersaturated nanocrystalline Ag-Cu alloy

Entmischungsvorgänge und Kornwachstumsverhalten in einer übersättigten nanokritallinen Ag-Cu Legierung
: Shen, H.; Günther, B.; Schäfer, H.; Li, Z.; Qi, Z.


Scripta Metallurgica et Materialia 32 (1995), No.10, pp.1677-1681
ISSN: 0956-716X
Journal Article
Fraunhofer IFAM ()
Kornwachstum; nanokristalliner Werkstoff; Nanopulver; Pulvermetallurgie; Transmissionselektronenmikroskopie; Werkstoffphysik

In this paper the solid solution supersaturation and dissolution as well as grain growth effects are studied in nanocrystalline AgCu alloys by using a step-annealing treatment during transmission electron microscopy (TEM) as well as during X-ray diffraction (XRD). A comparison of the results obtained by these two methods show that the variations of the solute concentration in the solid solution are too small to lead to a measurable peak broadening effect in the XRD spectra, but that dissolution of supersaturated solid solution alpha-Ag and alpha-Cu grains occurs.