Paper Title:
Dislocation Dynamics Simulation of Grain Boundary Effects on Yield Behavior of Metals
  Abstract

This paper describes dislocation dynamics simulation of grain boundary effects on yield behavior of metals, such as α-Fe bcc metal. Since the stress field arising from the grain boundary has not been well understood yet, the geometrical effect of the grain boundary can be handled in the simulation by the use of rigid boundary condition. The dislocation pileups can be observed near the grain boundary in the result of the DD simulation. And the yield stress in the crystal having the grain boundary becomes larger than that in the crystal having free surface. This result tells us that the Hall-Petch effect can actually describe well the effects of the grain boundary on the yield behavior of metals.

  Info
Periodical
Key Engineering Materials (Volumes 261-263)
Edited by
Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka
Pages
741-746
DOI
10.4028/www.scientific.net/KEM.261-263.741
Citation
A. Takahashi, N. Soneda, A. Nomoto, G. Yagawa, "Dislocation Dynamics Simulation of Grain Boundary Effects on Yield Behavior of Metals", Key Engineering Materials, Vols. 261-263, pp. 741-746, 2004
Online since
April 2004
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Price
$32.00
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