Effect of Fluctuations on the Formation of Secondary Phase Precipitates at Grain Boundaries

被引：1

作者：

L'vov, P. E. ^{[1
]}

Svetukhin, V. V. ^{[1
,2
]}

机构：

[1] Ulyanovsk State Univ, Ulyanovsk 432017, Russia

[2] Russian Acad Sci, Inst Nanotechnol Microelect, Moscow 115487, Russia

来源：

PHYSICS OF THE SOLID STATE | 2019年 / 61卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

FREE-ENERGY; BINARY-ALLOYS; DECOMPOSITION; DIFFUSION; KINETICS; TRANSITIONS; NUCLEATION; SIMULATION; MODEL; CO;

D O I：

10.1134/S106378341902015X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Based on the free energy density functional method (modified Cahn-Hillard-Cook equation), the formation kinetics of secondary phases in binary alloys is considered in the presence of composition fluctuations and with inclusion of the grain boundaries influences. It is revealed that the existence of grain boundaries and the fluctuations at the initial stage of the phase transition can lead to the appearance of anomalous growth rate of the average precipitate size due to a competition of various decomposition mechanisms.

引用

页码：225 / 232

页数：8

共 47 条

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[2]

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[3]

[Anonymous], 2014, ATOM PROBE TOMOGRAPH

[4]

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