Study on Corrosion Behavior of 3D-Printing W and WZrC in Static Liquid Li

IF 1.9 4区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Journal of Fusion Energy Pub Date : 2025-03-06 DOI:10.1007/s10894-025-00488-1

D. H. Zhang, X. C. Meng, G. Z. Zuo, X. Li, L. Yang, B. Cao, J. S. Hu

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引用次数: 0

Abstract

A liquid Lithium (Li) Tungsten (W)-based divertor, which combines the advantages of both W and liquid Li, is a promising solution for the divertor of future fusion reactors. The 3D printing technology, which has advantages such as the ability to process complex structures based on 3D models and high energy density suitable for the manufacturing of high-melting-point metals, will play an important role in the manufacturing of divertor components. To address the corrosion behavior of target materials in liquid Li under operational conditions, we investigated the corrosion behavior of 3D-printing W and WZrC in static liquid Li at 550 °C for 500 h. After being exposed to liquid Li, the samples exhibited mass loss, grain boundary corrosion, and pitting corrosion. The mass loss rates of W and WZrC in liquid Li were 3.3 × 10^–2 and 1.76 × 10^–2 g/(m²·h), respectively. The XPS and XRD results of the samples did not show significant changes before and after the test. Corrosion of liquid Li has a greater effect on the thermal conductivity of W than that of WZrC. In this study, adding ZrC to W may be an effective way to improve the liquid Li corrosion resistance of W. Reducing surface cracks may improve the resistance of 3D-printing W alloys to liquid Li corrosion.

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3d打印W和WZrC在静态液体Li中的腐蚀行为研究

液态锂（Li）钨(W)基导流剂结合了W和液态锂的优点，是未来核聚变反应堆中很有前途的导流剂。3D打印技术具有基于3D模型加工复杂结构的能力和适合制造高熔点金属的高能量密度等优势，将在导流器部件的制造中发挥重要作用。为了解决目标材料在操作条件下在液态锂中的腐蚀行为，我们研究了3d打印W和WZrC在静态液态锂中的腐蚀行为，温度为550°C，时间为500小时。暴露于液态锂后，样品表现出质量损失，晶界腐蚀和点蚀。W和WZrC在Li液中的质量损失率分别为3.3 × 10-2和1.76 × 10-2 g/（m2·h）。测试前后样品的XPS和XRD结果没有明显变化。液态Li的腐蚀对W导热系数的影响大于WZrC。在本研究中，在W中加入ZrC可能是提高W的抗液锂腐蚀能力的有效途径，减少表面裂纹可以提高3d打印W合金的抗液锂腐蚀能力。

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

Journal of Fusion Energy 工程技术-核科学技术

CiteScore

2.20

自引率

0.00%

发文量

审稿时长

2.3 months

期刊介绍： The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews. This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.