Open AccessMolecular dynamics simulation of deformation-induced crystallization mechanism in amorphous Ti3Al alloy
Author(s) -
Hailong Wang,
Wang Xiu-xi,
Yu Wang,
Liang Haiyi
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.1489
Subject(s) - materials science , crystallization , nucleation , amorphous solid , amorphous metal , microstructure , molecular dynamics , alloy , deformation (meteorology) , crystal (programming language) , phase (matter) , composite material , crystallography , thermodynamics , chemistry , physics , computer science , programming language , computational chemistry , organic chemistry
The crystallization of Ti3Al amorphous alloy during tensile deformation was studied with molecular dynamics. The simulation results show that the crystallization of amorphous alloy is induced by the local plastic deformation. The microstructure evolution was analyzed in the tension process. It is found that the nucleation and growth are induced by the shear localization and the final crystal phase has fcc structure. It is also found that the crystallization process is accompanied by strengthening of the material. The nanocrystal grains embedded in the amorphous phase can enhance the rigidity of the sample.