Comparison of transformations with inhomogeneous nucleation and transformations with inhomogeneous growth velocity

被引：2

作者：

Lyrio, Mariana Sizenando ^{[1
]}

Moraes Alves, Andre Luiz ^{[1
]}

Silveira de Sa, Gabriella Maria ^{[1
]}

Ventura, Harison da Silva ^{[1
]}

da Silva Assis, Weslley Luiz ^{[1
]}

Rios, Paulo Rangel ^{[1
]}

机构：

[1] Univ Fed Fluminense, Escola Engn Ind Met Volta Redonda, Av Trabalhadores 420, BR-27255125 Volta Redonda, RJ, Brazil

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2019年 / 8卷 / 05期

关键词：

Computer simulation; Microstructure; Phase transformations; Nucleation and growth transformations; Analytical methods; KINETICS;

D O I：

10.1016/j.jmrt.2019.08.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we carry out computer simulations of transformations to compare two distinct situations regarding nucleation and growth. The first situation is that in which the nucleation is not homogeneous in space: the nuclei are located inhomogeneously within the matrix, but the growth velocity is the same everywhere. The second situation is that the nuclei are located homogeneously within the matrix, but the growth velocity is inhomogeneous. Microstructure and transformation kinetics of the two transformations are compared. The main result is that the transformation kinetics is affected by either inhomogeneous nucleation or inhomogeneous growth. Nonetheless, an inhomogeneity in nucleation appears to have a stronger effect on the microstructural inhomogeneity than an inhomogeneity in velocity. (C) 2019 The Authors. Published by Elsevier B.V.

引用

页码：4682 / 4686

页数：5

共 11 条

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