Phase Field Simulation of Two NbC Particles'Growing Behaviors in Niobium-bearing Steel
GUAN Xiaojun
LIU Qianqian
Abstract：In order to study the growing behavior of NbC precipitated in low‐carbon niobium‐bearing steel ,the growth processes of two NbC particles were simulated ,and the evolution of their morphology and size as well as the effects of the initial interface spacing were also revealed based on a phase‐field model and its software .The results show that :with the extension of the simulation process ,the growth of two parti‐cles is changed from separation to integration and their interface distance decrease continuously to zero , which is resulted from the change of structure order parameter caused by niobium atomic diffusion and lo‐cal free energy density variation;the time taken for merging two particles′interface prolongs with the in‐creases of initial interface spacing until being stable ,w hich has a certain practical significance for analyzing the state of NbC particles existed in the low carbon niobium‐bearing steel .
Keywords：simulationphase field methodniobium-bearing steelNbC particlesprecipitation and grow thinitial interface spacing
Publication Date：2015-10-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )