The effective diffusion coefficient of boron in the Fe2B layers formed on the iron substrate

被引：4

作者：

Keddam, M. ^{[1
]}

Bouarour, B. ^{[1
]}

Abdellah, Z. Nait ^{[2
]}

Chegroune, R. ^{[1
]}

机构：

[1] USTHB, Fac GM & GP, Lab LTM, BP 32 El Alia, Algiers 16111, Algeria

[2] Univ Mouloud Mammeri, Fac Sci, Dept Chim, Tizi Ouzou 15000, Algeria

来源：

XXXIX JEEP - 39TH EDITION OF THE JOINT EUROPEAN DAYS ON EQUILIBRIUM BETWEEN PHASES | 2013年 / 3卷

关键词：

D O I：

10.1051/matecconf/20130301012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this current work, the boron diffusion coefficient in Fe2B was firstly evaluated using a diffusion model. It considers the effect of the incubation times required to form the Fe2B layers by the paste-boriding process on the iron substrate. This model solves the mass balance equation at the (Fe2B/substrate) interface under certain assumptions. Afterwards, the effective boron diffusion coefficient in Fe2B was evaluated through an application of a simple equation. As a result, the estimated value of boron activation energy in the presence of chemical stresses was found to be equal to 146.5 kJ mol(-1) on the basis of experimental data taken from the literature.

引用

页数：4

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