کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470713 990332 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of the electrochemical permeation of hydrogen in iron
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Study of the electrochemical permeation of hydrogen in iron
چکیده انگلیسی

Hydrogen permeation through iron membranes of different thicknesses was studied by the electrochemical permeation technique. The membranes were charged with hydrogen by galvanostatic cathodic polarization in 0.1 M NaOH at 25 °C.The measured build-up and decay permeation current transient had been examined.The experimental results revealed that the diffusion apparently increases with decreasing membrane thickness. This result suggests that the hydrogen transport through membrane was mainly governed by hydrogen trapping at the trap sites present at the grain boundaries.The influence of the passive layer on the hydrogen permeation and its influence on the evaluation of diffusion and trapping characteristics were discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 51, Issue 2, February 2009, Pages 263–267
نویسندگان
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