ON THE KINETICS OF HYDROGEN EXTRACTION FROM SOLID METALS.

被引：0
|
作者：
Gabidullin, R.M.
Kolachev, B.A.
Ivanishchev, G.V.
机构：
来源：
Physics of Metals and Metallography | 1974年 / 37卷 / 06期
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D O I：
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中图分类号：
TF [冶金工业]; TG113 [金相学（金属的组织与性能）];
学科分类号：
0806 ;
摘要：
A mathematical model of the degassing process of solid metals is proposed on the basis of the hypothesis that local equilibria exist when hydrogen is distributed between the solid solution and traps in the form of voids and hydrides. The kinetic equation of degassification for porous specimens has been solved on a computer for most of the cases encountered in practice. The kinetic curves are presented in the form of homograms. An analytical solution of the problem of hydrogen distribution at different stages of extraction is given for hydride-forming metals. It is found that the zone which does not contain hydrides varies in thickness as a parabolic function of time. The relations between the true and apparent diffusion coefficients in metals are discussed.
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页码：51 / 58
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