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Hydrogen Diffusion in Austenitic Stainless Steels

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Abstract:

The electrochemical permeation technique was used to evaluate the hydrogen diffusion, and analyse its interdependent solubility and trapping behaviour in 9 austenitic stainless steels. The hydrogen diffusion of all alloys obeyed Arrhenius relationships in the temperature range between 25 °C to 100 °C. The apparent diffusion coefficients were determined and the relevant activation energies were estimated. It was observed that Ni, Mo, Mn and N, among other alloying elements, clearly effect the hydrogen diffusion.

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Periodical:

Defect and Diffusion Forum (Volumes 258-260)

Pages:

322-326

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.258-260.322

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Online since:

October 2006

Authors:

Yun Chen, Diogo M.F. Santos, César A.C. Sequeira

Keywords:

Activation Energy, Alloying Element, Austenitic Stainless Steel, Diffusion Coefficient, Electrochemical Permeation Technique, Hydrogen Diffusion

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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