Monte Carlo Simulation of Cube-Texture Evolution during Grain Growth of High-Purity Nickel

Abstract:

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A Monte Carlo Potts model has been used to investigate cube-texture strengthening during grain growth in rolled high-purity Ni-tapes. The initial conditions for the simulations have been taken from electron back-scatter pattern (EBSP) orientation maps of already fully recrystallized samples. Experimentally, grain growth leads to an increase in the cube volume fraction to >95% , accompanied by an approximately ten-fold increase in the grain size. High cube volume fractions can be predicted under a number of conditions, though a small surface energy advantage of just 2% for cube-oriented grains is required to match the texture strengthening to the grain size change. An additional issue of interest is the influence on the grain growth of the large area-fraction of twin boundaries in the fully recrystallized condition. The presence of boundaries with low energy has a strong influence on the simulated microstructural evolution.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3149-3152

DOI:

10.4028/www.scientific.net/MSF.475-479.3149

Citation:

A. Godfrey et al., "Monte Carlo Simulation of Cube-Texture Evolution during Grain Growth of High-Purity Nickel", Materials Science Forum, Vols. 475-479, pp. 3149-3152, 2005

Online since:

January 2005

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Price:

$35.00

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