Simulation of the Growth Kinetics of γ′-Nitride Layers on Armco Iron by the Integral Method

被引：1
|
作者：
Keddam, M. [1 ]
Kulka, M. [2 ]
机构：
[1] USHB, Lab Technol Mat, GM & GP, Bab Ezzouar, Algeria
[2] Poznan Univ Tech, Inst Mat Sci & Engn, Poznan, Poland
来源：
METAL SCIENCE AND HEAT TREATMENT | 2020年 / 62卷 / 7-8期
关键词：
nitriding; iron nitride; integral method; growth kinetics; FE2B LAYERS; DIFFUSION-COEFFICIENTS; PURE IRON; NITROGEN; STEEL;
D O I：
10.1007/s11041-020-00597-y
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The integral method is used to simulate the kinetics of growth of gamma '-phase layers during nitriding of Armco iron in a microwave discharge chamber. Solution of the system of differential algebraic equations is used to assess the diffusivity of nitrogen in the gamma '-phase layers in the temperature range of 773 - 843 K at a surface concentration of nitrogen equal to 5.9 wt.%. The computed activation energy of nitrogen diffusion and the predicted values of the thickness of the gamma '-phase layer are compared to reported data.
引用
收藏
页码：529 / 533
页数：5
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