Formation of oxide nanoclusters in nanostructured ferritic alloys during anisothermal heat treatment: A kinetic Monte Carlo study

被引：21

作者：

Hin, C. ^{[1
,2
]}

Wirth, B. D. ^{[2
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 4-5期

基金：

美国国家科学基金会;

关键词：

ODS alloys; Homogeneous precipitation; MC-simulations; Anisothermal heat treatment; HIGH-TEMPERATURE STRENGTH; MECHANICAL-PROPERTIES; SURFACE-TENSION; STEEL; PRECIPITATION; IRRADIATION; STABILITY; PARAMETERS; TITANIUM; NBC;

D O I：

10.1016/j.msea.2010.11.017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Kinetic Monte Carlo simulations, based on rigid lattice approximation, have been performed to study the homogeneous precipitation in Fe-Y-O and Fe-Ti-O alloys during anisothermal heat treatments. Simulations predict different kinetic behaviors, including transient precipitation of metastable iron oxides followed by precipitation of Y2O3 or Ti2O3 nanoclusters. Then, precipitation kinetics in ternary alloys are compared. Significant differences in the precipitation behaviour of Y2O3 and Ti2O3 were observed as result of dramatically different diffusion rates of Y and Ti atoms. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2056 / 2061

页数：6

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