Microscopic computer simulations of directional coarsening in face-centered cubic alloys

✍ Scribed by H. Gupta; R. Weinkamer; P. Fratzl; J.L. Lebowitz

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 630 KB
• Volume: 49
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/s1359-6454(00)00303-7

✦ Synopsis

We carried out Monte Carlo simulations of phase separation in a three-dimensional binary alloy with misfitting phases subjected to uniaxial external stress. A lattice of cylindrical or plate-like precipitates is formed at the mesoscale, as observed in real alloys. The rate of precipitate growth is much slower than the conventional R(t)ෂt 1/3 behavior in systems with no elastic misfit. Once a well-defined precipitate microstructure is formed, the reversal of external applied load has only a small effect.