Improving hydrogen isotope permeation resistance on T91 steel: The role of Plasma-Induced-Oxide-Interlayer

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-22 DOI:10.1016/j.matlet.2025.138616

Tianyu Xie , Feng Liu , Yulong Li , Ping Huang , Fei Wang

引用次数: 0

Abstract

The high permeability of hydrogen isotopes in structural materials poses significant challenges to fusion reactors. This study innovatively enhances the comprehensive performance of hydrogen isotopes permeation barrier coatings by introducing an intermediate layer to modify the wettability of the substrate for the first time. A plasma oxidation treatment was conducted on the surface of T91 steel to form an (Fe, Cr)O oxide intermediate layer, followed by the application of an α-Al₂O₃ coating. Experimental results demonstrate that the sample with the intermediate layer exhibits superior hydrogen permeation resistance, enhanced corrosion resistance after plasma oxidation, and improved thermal shock performance. This research offers a promising method for developing high-performance hydrogen isotope permeation barrier coatings on T91 steel.

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提高T91钢抗氢同位素渗透性能：等离子体诱导氧化夹层的作用

氢同位素在结构材料中的高渗透性对聚变反应堆提出了重大挑战。本研究首次通过引入中间层来改变基材的润湿性，创新性地提高了氢同位素渗透屏障涂层的综合性能。对T91钢表面进行等离子体氧化处理，形成（Fe, Cr）O氧化物中间层，再涂上α-Al2O3涂层。实验结果表明，含有中间层的样品具有较好的抗氢渗透性能，增强了等离子体氧化后的耐腐蚀性，并改善了热冲击性能。本研究为开发高性能T91钢氢同位素渗透屏障涂层提供了一种很有前途的方法。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive