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  4. Influence of powder consolidation methods on the structural and thermal properties of a nanophase Cu-50wt%Ag alloy
 
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1995
Journal Article
Title

Influence of powder consolidation methods on the structural and thermal properties of a nanophase Cu-50wt%Ag alloy

Other Title
Einfluß der Pulverkompaktierungsmethode auf das Gefüge und die thermischen Eigenschaften einer nanokristallinen Cu-50gew%Ag Legierung
Abstract
Nanocrystalline Ag-Cu powder compacts of identical composition have been prepared by 3 different methods: a) compaction of Ag-Cu alloy nanopowder prepared by inert gas condensation of a prealloy (IGC), b) mechanical alloying (MA) of elemental Ag and Cu powders, c) severe plastic deformation (SPID) of a course grained ingot material as well as of a compact of [GC and MA powder. The resulting microstructures have been studied as a function of annealing temperature by means of XRD and TEM in-situ. It is shown that IGC of the prealloy results in a duplex nanostructure, whereas MA and SPID lead to a metastable solid solution phase that decomposes to fine Ag and Cu on heating.
Author(s)
Shen, H.
Li, Z.
Günther, B.
Korznikov, A.V.
Valiev, R.Z.
Journal
Nanostructured materials  
DOI
10.1016/0965-9773(95)00077-1
Language
English
Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung IFAM  
Keyword(s)
  • Kornwachstum

  • Kugelmahlen

  • mechanisches Legieren

  • Mikrogefüge

  • nanokristalliner Werkstoff

  • Pulvermetallurgie

  • Pulverpressen

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