Paper Title:
Atomic Scale Investigation of Cr Precipitation in Cu and Related Mechanical Properties.
  Abstract

The early stages of precipitation of Cr rich precipitates were investigated by Atom Probe Tomography (APT) in a Cu-1Cr-0.1Zr (wt.%). This way, quantitative data were obtained about their size, 3D shape, density, composition and volume fraction. Surprisingly, in the early stage of precipitation, nanoscaled precipitates exhibit various shapes (spherical, plates and ellipsoid) and contain a large amount of Cu (up to 50%), in contradiction with the equilibrium Cu-Cr phase diagram. APT data also show that some impurities (Fe) segregate along Cu/Cr interfaces. A precipitation sequence is proposed and the relationship between mechanical properties and microstructure is discussed.

  Info
Periodical
Solid State Phenomena (Volumes 172-174)
Edited by
Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
Pages
291-296
DOI
10.4028/www.scientific.net/SSP.172-174.291
Citation
A. Chbihi, X. Sauvage, D. Blavette, "Atomic Scale Investigation of Cr Precipitation in Cu and Related Mechanical Properties.", Solid State Phenomena, Vols. 172-174, pp. 291-296, 2011
Online since
June 2011
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$32.00
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