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Numerical modelling of hydrogen desorption from cylindrical surface

✍ Scribed by Natalia I. Rodchenkova; Yury V. Zaika

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
510 KB
Volume
36
Category
Article
ISSN
0360-3199

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✦ Synopsis

We consider degassing of cylindrical sample containing dissolved hydrogen. The experiment is made by the thermodesorption method. In the corresponding boundary-value problem with nonlinear dynamic boundary conditions physicalechemical processes in the bulk and on the metal surface are taken into account: diffusion, desorption, solution, and capture by defects. Computational algorithm for desorption flux modelling is developed on the basis of difference approximations. The results of numerical modelling are presented.

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