使用凸出的圆筒形工具提高 FSWed AA2024 的材料流动性和接缝成形效果

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

Materials Letters Pub Date : 2024-11-23 DOI:10.1016/j.matlet.2024.137763

Qipeng Yin , Song Gao , Lei Shi , Junnan Qiao , Yuankun Jing , Wei Zhao , Sachin Kumar

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引用次数: 0

摘要

研究了改良工具上的突出圆柱体对 2024 铝合金搅拌摩擦焊（FSW）接头性能的优化机制。结果表明，改良工具上凸出圆柱体的存在明显改善了焊缝的表面质量，增加了焊块区（WNZ）的宽度和面积，细化了晶粒尺寸。此外，析出相的尺寸减小，分布更加均匀，从而提高了接头的抗拉强度和硬度。此外，突出圆柱体的存在促进了材料流动，稳定了焊接过程，并有助于形成均匀的焊缝。

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Enhanced material flow and joint formation of FSWed AA2024 by using protruding cylinder tool

The optimization mechanism of the protruding cylinder on the modified tool for the performance of friction stir welding (FSW) joints in 2024 aluminum alloy was investigated. The results indicate that the presence of a protruding cylinder on the modified tool significantly improves the surface quality of the weld, increases the width and area of the weld nugget zone(WNZ), and refines the grain size. Additionally, the size of the precipitated phases is reduced, and their distribution becomes more uniform, which in turn enhances the tensile strength and hardness of the joint. Furthermore, the presence of a protruding cylinder facilitated material flow, stabilized the welding process, and contributed to the formation of uniform welds.

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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