Interdiffusion of Cr, Mo, and W in Iron
Interdiffusion of Cr, Mo, and W in Iron
复制标题
DOI：
10.1179/msc.1974.8.1.407
复制
发表时间：
1974-01
期刊：
影响因子：
--
通讯作者：
P. Alberry;C. W. Haworth
中科院分区：
文献类型：
--
作者：
P. Alberry;C. W. Haworth
用电子探针法测定了铬、钼和钨在α-铁和γ-铁中的扩散速率。合金浓度可达28.3 at。-% Cr, 5.05 at。-% Mo, 2·9 at。在675 ~ 1485°c的范围内，研究了铁素体或奥氏体在任何温度下的相互扩散，发现在所研究的成分范围内，每种合金体系的相互扩散与浓度无关。本研究的数据已与现有的可靠数据相结合，因此这些合金体系中的扩散可以用下列频率因子（Do）和活化能(Q)的值来描述，误差在95%的置信限内给出。
The diffusion rates of chromium, molybdenum, and tungsten in α- and γ-iron have been determined by electron-probe microanalysis. Alloy concentrations up to 28·3 at.-% Cr, 5·05 at.-% Mo, 2·9 at.-% W have been investigated over the range 675 to 1485° C. At any temperature in either ferrite or austenite, D Mo > D Cr > D w. Interdiffusion in each alloy system was found to be independent of concentration for the composition ranges studied. Data from the present investigation have been combined with existing reliable data so that diffusion in these alloy systems may be described by the following values of frequency factor (Do ) and activation energy (Q), with errors given at the 95% confidence limits.