Determination of the hydrogen fugacity during cathodic hydrogen charging of X65 D pipeline steel

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-11-22 DOI:10.1016/j.corsci.2024.112580

Joshua Hoschke , Maximilian Roethig , Clotario V. Tapia-Bastidas , Md Fahdul Wahab Chowdhury , Jeffrey Venezuela , Yilei Shu , Evan Gray , Andrej Atrens

引用次数: 0

Abstract

Hydrogen embrittlement testing using cathodic hydrogen charging is directly relatable to structures containing gaseous hydrogen if the hydrogen fugacity is known. The hydrogen fugacity, f_Hc, was evaluated by comparing the hydrogen concentration after cathodic charging with the hydrogen concentration in equilibrium with hydrogen gas: f_Hc^0.5 = 6.11 i^0.5 + 10.9 for cathodic hydrogen charging X65 D in 0.10 M NaOH at a current density of i. The hydrogen concentration in equilibrium with gaseous hydrogen in X65 D, C_Hg, was evaluated from literature values and hydrogen gas-phase permeation results: C_Hg = 0.0062f_Hg^0.5 + 0.0355, where f_Hg is the hydrogen gas fugacity.

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x65d管线钢阴极充氢过程中氢逸度的测定

如果氢逸度已知，使用阴极充氢的氢脆试验与含有气态氢的结构直接相关。通过比较阴极充电后的氢气浓度和与氢气平衡的氢气浓度来评价氢的逸度fHc：在电流密度为i的0.10 M NaOH中，阴极氢气充电X65 D时，fHc0.5 = 6.11 i0.5 + 10.9。通过文献值和氢气气相渗透结果来评价X65 D中与气态氢平衡的氢气浓度CHg：CHg = 0.0062fHg0.5 + 0.0355，其中fHg为氢气逸度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.