多材料激光粉末床熔融 CuZr/316L 不锈钢的界面特性

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI:10.1016/j.cirp.2024.03.001

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引用次数: 0

摘要

本研究采用四种印刷策略，研究了同一层内 CuZr/316 L 不锈钢（SS）的多材料激光粉末床熔融（MM-LPBF）印刷。先打印 CuZr 可以获得更好的质量。相反，先打印 316 L 不锈钢会因热应力升高而产生明显的裂纹，并因马兰戈尼效应引起的材料对流而导致更大的扩散区域。与不重叠相比，材料重叠能有效减少裂纹的形成，并产生更大的扩散区域。为演示电子冷却应用，打印了一个拓扑优化的液体冷却散热器，该散热器具有 CuZr 内核和 316 L SS 保护层。

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Interfacial characteristics in multi-material laser powder bed fusion of CuZr/316L stainless steel

This research investigates the multi-material laser powder bed fusion (MM-LPBF) printing of CuZr/316 L stainless steel (SS) within the same layer using four printing strategies. Printing CuZr first exhibits better quality. Conversely, printing 316 L SS first led to notable cracks due to elevated thermal stress and resulted in a larger diffusion zone due to material convection caused by the Marangoni effect. Material overlapping is effective in reducing the formation of cracks and creating a larger diffusion zone compared to non-overlapping. A topology-optimized liquid cooling heat sink with CuZr core and 316 L SS protective layer was printed to demonstrate electronic cooling applications.

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来源期刊

Cirp Annals-Manufacturing Technology 工程技术-工程：工业

CiteScore

7.50

自引率

9.80%

发文量

137

审稿时长

13.5 months

期刊介绍： CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems. This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include: Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.