Issue 60, 2016, Issue in Progress

Structural evolution of TiAl during rapid solidification processing revealed by molecular dynamics simulations

Abstract

In this paper, the processes of rapid solidification in TiAl was investigated by molecular dynamics simulations. The structure transformation which occurs during solidification is described by internal energy, radial distribution functions, Honeycutt-Anderson pair analysis technique, mean square displacement and simulation of powder X-ray diffraction patterns. The effects of different cooling rates, 50–0.005 K ps−1, on the amorphous structure formation and crystallization of liquid TiAl are simulated. The results show that an amorphous phase can be obtained when the cooling rate is not less than 0.02 K ps−1, and γ-TiAl + α2-Ti3Al mixed phases can be formed when the cooling rate is 0.01 K ps−1.

Graphical abstract: Structural evolution of TiAl during rapid solidification processing revealed by molecular dynamics simulations

Article information

Article type
Paper
Submitted
06 Apr 2016
Accepted
02 Jun 2016
First published
02 Jun 2016

RSC Adv., 2016,6, 54763-54767

Structural evolution of TiAl during rapid solidification processing revealed by molecular dynamics simulations

P. Li, Y. Yang, W. Zhang, X. Luo, N. Jin and G. Liu, RSC Adv., 2016, 6, 54763 DOI: 10.1039/C6RA08810D

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