hydrogen overvoltage

hydrogen overvoltage

[′hī·drə·jən ¦ō·vər¦vōl·tij]
(metallurgy)
An overvoltage occurring at an electrode as a result of the liberation of hydrogen gas.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Such sites exhibit lower hydrogen overvoltage than either cementite or iron.

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