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Phase field Crystal simulation of cluster evolution in Al-Cu alloys during the early state of ageing

Thursday (27.09.2018)
18:45 - 19:00 S1/01 - A01
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Coupling with concentration field, the structural Phase Field Crystal (PFC) method was used to investigate the nucleation and growth mechanisms of early clusters at three-dimensions in Al-Cu binary alloys [1]. In the present structural PFC simulation, we are focusing on the precipitate characteristics of the Al-Cu alloy under different Al/Cu ratio and environment, together with the energetic factors for the instability of natural aging clusters. The characteristics of anisotropic growth are also revealed through observing the morphological evolution of the simulated early clusters. The obtained atomistic characterizations from structural PFC are compared with available transmission electron microscopy (TEM) results.

Xiong Shuai
Central South University
Additional Authors:
  • Dr. Hong Mao
    Central South University
  • Dr. Yi Kong
    Central South University
  • Dr. Kai Li
    Central South University
  • Prof. Dr. Yong Du
    Central South University