Mechanism of Grain-Boundary Diffusion and Grain-Boundary Segregation of 57Co in Polycrystalline Nb

被引：4

作者：

Popov, V. V. ^{[1
]}

Osinnikov, E., V ^{[1
]}

机构：

[1] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620108, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2021年 / 122卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

grain boundaries; Mossbauer spectroscopy; grain-boundary diffusion; grain-boundary segregation; EMISSION MOSSBAUER-SPECTROSCOPY; COPPER; MODEL;

D O I：

10.1134/S0031918X21090106

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The Mossbauer emission spectroscopy has been used to study the mechanisms of grain-boundary diffusion and grain-boundary segregation of Co-57 in polycrystalline Nb. It is shown that Co atoms diffuse along the grain boundaries of niobium by the interstitial mechanism. The relative intensity of spectral lines as a function of temperature has been analyzed. The grain-boundary segregation factor of Co in Nb has been calculated. The data received have been compared with the results of previous studies on grain-boundary diffusion and segregation of Sn in Nb.

引用

页码：891 / 895

页数：5

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