A mixed-mode model for partitioning phase transformations

被引：57

作者：

Bos, C.

Sietsma, J.

机构：

[1] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands

[2] Netherlands Inst Met Res, NL-2628 CD Delft, Netherlands

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 12期

关键词：

phase transformation kinetics; modelling; precipitation; mixed-mode kinetics;

D O I：

10.1016/j.scriptamat.2007.08.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A mixed-mode model for the interface velocity during partitioning phase transformations [J. Sietsma, S. van der Zwaag, Acta Mater. 52 (2004) 4143-4152] is reformulated and rigorously validated. Comparison with a numerical treatment shows that the model gives a near-exact description of the growth kinetics. In addition, the model provides information on the concentration profiles of the partitioning element. The mixed-mode growth model can be combined with a range of different microstructure models. As an example a combination with a Johnson-Mehl-Avrami extended volume model is shown. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1085 / 1088

页数：4

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