Paper Title:
Diffusion Creep during Grain Growth in Nanocrystalline Metals
  Abstract

Diffusion controlled creep in nanostructured materials is considered for the case when grain growth occurs concurrently. The Nabarro-Herring and Coble mechanisms that would predict creep rate reduction are re-considered to include the effect of grain-growth induced vacancy generation. It is shown that under such conditions creep is accelerated during an initial stage of grain growth as compared to the case of constant grain size. This creep enhancement stage is followed by a period of reduced creep rate. The predicted strain rate behaviour resembles primary and secondary creep.

  Info
Periodical
Materials Science Forum (Volumes 467-470)
Edited by
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
Pages
1283-1288
DOI
10.4028/www.scientific.net/MSF.467-470.1283
Citation
Y. Estrin, G. Gottstein, L. S. Shvindlerman, "Diffusion Creep during Grain Growth in Nanocrystalline Metals", Materials Science Forum, Vols. 467-470, pp. 1283-1288, 2004
Online since
October 2004
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Price
$32.00
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