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08549 The Role of Nascent Hydrogen in Refinery Corrosion

Picture for 08549 The Role of Nascent Hydrogen in Refinery Corrosion
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Product Number: 51300-08549-SG
ISBN: 08549 2008 CP
Author: Barry Messer, Vasile Oprea, Keith Beaulieu, and Andrew Wright
Publication Date: 2008
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In the refinery industry, there is continuous dialogue over the cause and effects of molecular and ionized hydrogen on the corrosion of metals. This paper focuses on the role of nascent hydrogen, a short-lived, non-ionized, monatomic species at equilibrium with other atomic hydrogen species within various alloys. Nascent hydrogen, a major corrosion contributor, is not well understood and not addressed adequately in many refinery standards. The corrosion mechanisms and mechanical properties of different hydrogen species are discussed including their formation, interaction, and transportation within various steels. Material composition, welding techniques, and operating process design conditions to mitigate harmful effects as well as case histories are also included.
In the refinery industry, there is continuous dialogue over the cause and effects of molecular and ionized hydrogen on the corrosion of metals. This paper focuses on the role of nascent hydrogen, a short-lived, non-ionized, monatomic species at equilibrium with other atomic hydrogen species within various alloys. Nascent hydrogen, a major corrosion contributor, is not well understood and not addressed adequately in many refinery standards. The corrosion mechanisms and mechanical properties of different hydrogen species are discussed including their formation, interaction, and transportation within various steels. Material composition, welding techniques, and operating process design conditions to mitigate harmful effects as well as case histories are also included.
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