Modelling of phase transformation kinetics in Ti alloys -: Isothermal treatments

被引：152

作者：

Appolaire, B ^{[1
]}

Héricher, L ^{[1
]}

Aeby-Gautier, E ^{[1
]}

机构：

[1] Ecole Mines, LSG2M, F-54042 Nancy, France

来源：

ACTA MATERIALIA | 2005年 / 53卷 / 10期

关键词：

titanium; modelling; diffusive transformations; nucleation and growth laws;

D O I：

10.1016/j.actamat.2005.03.014

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

We have developed a model which is able to describe the formation of high temperature microstructures in β metastable titanium alloys. It is based on the classical theory of nucleation, and on growth laws obtained by assuming that the processes are controlled by the diffusion of the alloying chemical species only. Two morphologies are described: grain boundary allotriomorphs, and Widmanstatten plates gathered in colonies growing from the allotriomorphs. Moreover, a statistical description of the nucleation conditions on β grain boundaries has been introduced in order to obtain the global kinetics of the transformation. The model predictions proved to be in good agreement with experimental results. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：3001 / 3011

页数：11

共 26 条

[1]

Building a continuous cooling transformation diagram of β-CEZ alloy by metallography and electrical resistivity measurements [J].