In situ small-scale hydrogen embrittlement testing made easy: An electrolyte for preserving surface integrity at nano-scale during hydrogen charging

被引：21

作者：

Hajilou, Tarlan ^{[1
]}

Hope, Malin S. B. ^{[1
]}

Zavieh, Amin H. ^{[1
]}

Kheradmand, Nousha ^{[1
]}

Johnsen, Roy ^{[1
]}

Barnoush, Afrooz ^{[1
]}

机构：

[1] NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 27期

关键词：

Hydrogen-assisted cracking; Electrochemistry; Hydrogen diffusion; Nano-indentation; Micromechanical; BORATE BUFFER; ASSISTED CRACKING; STAINLESS-STEELS; PASSIVE FILM; PURE IRON; DIFFUSIVITY; ENVIRONMENT; PERMEATION; SOLUBILITY; INSIGHT;

D O I：

10.1016/j.ijhydene.2018.04.168

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An electrolyte for electrochemical hydrogen charging of corrosion-susceptible alloys is developed, which preserves the surface integrity at nano-scale by minimizing the surface roughness alternation. To assure the formation and adsorption of the hydrogen from the electrolyte, permeation tests were performed on Fe 3 wt%Si ferritic steel. X-ray photo-electron spectroscopy method was used to check the effect of the glycerol-based solution on the chemical composition of the sample surface. The surface analysis revealed minimal chemical and topography alteration on the surface after different electrochemical treatments. Various types of in situ small-scale mechanical tests such as nano-indentation, micro-pillar compression, and micro-cantilever bending tests were performed inside this electrolyte while the samples being charged with hydrogen under cathodic potential. These small-scale mechanical tests showed that the solution facilitates studying hydrogen embrittlement in nano- or micro-scale. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：12516 / 12529

页数：14

共 8 条

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[3] Testing of a small-scale stand-alone power system based on solar energy and hydrogen
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[6] Hydrogen embrittlement and associated surface crack growth in fine-grained equiatomic CoCrFeMnNi high-entropy alloys with different annealing temperatures evaluated by tensile testing under in situ hydrogen charging
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[7] Small-scale production of hydrogen via auto-thermal reforming in an adiabatic packed bed reactor: Parametric study and reactor's optimization through response surface methodology
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[8] Overview of recent three-dimensional, small-scale, mini-pipe testing carbon steel well tubulars with internal pressure, axial load, and internal/external hydrogen sulfide exposure (Reprinted from Proceedings of the CORROSION/2007 research topical symposium "Advances in Environmentally Assisted Cracking", 2007)
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