Diffusion and segregation of silver in copper Σ5(310) grain boundary

  • Divinski S
  • Edelhoff H
  • Prokofjev S
  • 41

    Readers

    Mendeley users who have this article in their library.
  • 32

    Citations

    Citations of this article.

Abstract

Grain boundary diffusion of 110mAg in Cu Σ5(310) bicrystal is measured along and perpendicular to the [001] tilt axis in both C and B kinetic regimes after the common Harrison's classification. The grain boundary diffusion coefficients, D gb, of the single grain boundary in a true dilute limit of solute concentration are determined in the C kinetic regime and the values of the triple products P=s•δ•D gb are measured in the B regime (here s and δ are the segregation factor and the diffusional grain boundary width, respectively). A strong anisotropy of the grain boundary diffusion is established, which disappears above 826 K. It is the point at which the triple product P demonstrates a downward deviation from the otherwise linear Arrhenius dependence at lower temperatures. These results substantiate a temperature-induced disordering transition of the grain boundary structure. The anisotropy of the product s•δ for the Σ5(310) grain boundary is estimated. © 2012 American Physical Society.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free