通过原子探针层析成像技术对管道钢中的氢进行系统定量分析

IF 6.6 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY npj Materials Degradation Pub Date : 2024-11-18 DOI:10.1038/s41529-024-00528-9
Shuohan Wang, Peng Zhang, Majid Laleh, Lu Jiang, Mike Yongjun Tan, Ross K. W. Marceau
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引用次数: 0

摘要

原子探针层析成像(APT)是测量固体物质中氢的原子尺度分布以评估材料氢脆敏感性的一种很有前途的工具。然而,这种由环境充填和转移实验得出的测量结果的准确性还有待确定。在这项工作中,我们测定了典型 X65 管线钢中氢 (H) 和氘 (D) 在环境充填和转移后的 APT 定量,以确定伪影对 H/D 信号测量的影响。在使用 APT 测量 H/D 时,探索了一系列与样品制备(电抛光、聚焦离子束)和电化学充电条件(不同的电解质和充电电位)相关的实验工作流程。结果表明,在环境充电和转移之后,APT 可用于测量带电的 H/D,并具有统计置信度;在电抛光过程中会发生氢气渗入;使用更负的充电电位会将更多的 H/D 引入材料中。
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Systematic quantification of hydrogen in pipeline steel by atom probe tomography after ambient charging and transfer
Atom probe tomography (APT) is a promising tool to measure the atomic-scale distribution of hydrogen in solid matter for the assessment of hydrogen embrittlement susceptibility of materials. However, the accuracy of such measurements resulting from ambient charging and transfer experiments needs to be established. In this work, APT quantification of hydrogen (H) and deuterium (D) in a typical X65 pipeline steel has been determined after ambient charging and transfer to ascertain the contribution of artifacts to the measured H/D signal. A series of experimental workflows related to sample preparation (electropolishing, focussed ion beam) and electrochemical charging conditions (different electrolytes and charging potentials) were explored for H/D measurement using APT. The results show that APT can be used to measure charged H/D with statistical confidence after ambient charging and transfer, that hydrogen ingress occurs during electropolishing, and using a more negative charging potential will introduce more H/D into the material.
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来源期刊
npj Materials Degradation
npj Materials Degradation MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
7.80
自引率
7.80%
发文量
86
审稿时长
6 weeks
期刊介绍: npj Materials Degradation considers basic and applied research that explores all aspects of the degradation of metallic and non-metallic materials. The journal broadly defines ‘materials degradation’ as a reduction in the ability of a material to perform its task in-service as a result of environmental exposure. The journal covers a broad range of topics including but not limited to: -Degradation of metals, glasses, minerals, polymers, ceramics, cements and composites in natural and engineered environments, as a result of various stimuli -Computational and experimental studies of degradation mechanisms and kinetics -Characterization of degradation by traditional and emerging techniques -New approaches and technologies for enhancing resistance to degradation -Inspection and monitoring techniques for materials in-service, such as sensing technologies
期刊最新文献
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