Optimizing degassing for particle-reinforced Al composite: Advanced ultrasonic-assisted argon treatment and numerical simulation insights

IF 8.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry Pub Date : 2024-10-15 DOI:10.1016/j.ultsonch.2024.107092

Jian Chen , Xinyuan Jin , Jiwei Geng , Xianhui Luo , Yugang Li , Peikang Xia , Xianfeng Li , Fangming Wang , Dong Chen , Mingliang Wang , Haowei Wang

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引用次数: 0

Abstract

Hydrogen removal from particle-reinforced Al composite is critical for preventing porosities near particle clusters and improving comprehensive material properties. This study investigated the effects of different argon flow schemes and power ultrasound on bubble dispersion in water. Based on similarity theory, the optimal argon flow scheme for ultrasonic-assisted argon (UAA) treatment was identified and applied to TiB₂/2024 Al composite to explore the degassing mechanism. Three argon flow schemes for UAA treatment: EV-EC (External ventilation, equal channel), IV-EC (Internal ventilation, equal channel), and IV-RC (Internal ventilation, reduced channel) were evaluated through numerical simulation and water simulation experiments. The results demonstrated that IV-RC scheme exhibits superior bubble dispersion characteristics and a broader bubbling range. Experimental results in Al composite confirmed that UAA treatment with IV-RC scheme achieved the highest degassing efficiency, with a relative density improvement of up to 98.01 % and the lowest hydrogen content (0.0235 ppm). Synchrotron radiation X-ray computed tomography results indicated that UAA treatment effectively reduces the pore size and volume, transforming interconnected, complex pores into dispersed, nearly spherical ones. Ultrasonic cavitation aids this process by breaking small argon bubbles into numerous tiny bubbles that penetrate deeply into the melt, reducing the wettability angle between particles and the matrix and thereby improving hydrogen removal efficiency.

查看原文本刊更多论文

优化颗粒增强铝复合材料的脱气：先进的超声波辅助氩气处理和数值模拟见解。

从微粒增强铝复合材料中去除氢气对于防止微粒簇附近出现孔隙和改善材料的综合特性至关重要。本研究探讨了不同的氩气流动方案和超声功率对水中气泡分散的影响。基于相似性理论，确定了超声波辅助氩气（UAA）处理的最佳氩气流方案，并将其应用于 TiB2/2024 Al 复合材料，以探索脱气机制。用于 UAA 处理的三种氩气流方案：通过数值模拟和水模拟实验，对 EV-EC （外部通风，等通道）、IV-EC （内部通风，等通道）和 IV-RC（内部通风，减通道）三种 UAA 处理氩气流方案进行了评估。结果表明，IV-RC 方案的气泡分散特性更好，起泡范围更广。铝复合材料的实验结果证实，采用 IV-RC 方案进行 UAA 处理的脱气效率最高，相对密度提高了 98.01%，氢含量最低（0.0235 ppm）。同步辐射 X 射线计算机断层扫描结果表明，UAAA 处理可有效减小孔隙尺寸和体积，将相互连接的复杂孔隙转变为分散的近似球形的孔隙。超声波空化可将小氩气泡破碎成无数小气泡，并深入熔体，从而降低颗粒与基体之间的润湿角，提高脱氢效率。

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

Ultrasonics Sonochemistry 化学-化学综合

CiteScore

15.80

自引率

11.90%

发文量

361

审稿时长

59 days

期刊介绍： Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels. Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.