研究后处理技术对选择性激光熔化制备的Inconel 718部件表面形貌和润湿性的影响

IF 5.4 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-06-04 DOI:10.1016/j.jestch.2025.102105

Preeti Gautam, Akash Nag, Jiří Hajnyš, Jakub Měsíček, Jana Petrů

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引用次数: 0

摘要

本研究考察了喷砂、离心滚磨和电解抛光三种后处理方法对slm打印Inconel 718表面特性和润湿性的影响。分析表面粗糙度参数，包括算术平均高度（Sa）、最大峰高（Sp）、最大谷高（Sv）、最大高度（Sz）、均方根粗糙度（Sq）、表面峰度（Sku）和表面偏度（Ssk），以评估每种处理的有效性。结果显示，表面粗糙度显著降低：喷砂降低了45%，离心翻滚降低了67%，电解抛光单独使用时提高了47%。值得注意的是，当这三种方法结合使用时，与打印状态相比，整体表面粗糙度降低了90%。表面形貌分析确定了处理表面上的缺陷，如微孔、裂纹和凹陷。润湿性评估显示亲水性增强，后处理后接触角从82°降至35°。这项研究强调了后处理在改善通过SLM生产的Inconel 718的表面光洁度和功能特性方面的重要性，从而扩大了其在各种工业用途上的潜力。

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Investigating the impact of post-processing techniques on surface morphology and wettability of Inconel 718 components fabricated via selective laser melting

This study investigates the impact of three post-processing methods—sandblasting, centrifugal tumbling, and electrolytic polishing—on the surface characteristics and wettability of SLM-printed Inconel 718. Surface roughness parameters, including arithmetic mean height (Sa), maximum peak height (Sp), maximum valley height (Sv), maximum height (Sz), root mean square roughness (Sq), surface kurtosis (Sku), and surface skewness (Ssk), were analyzed to assess the effectiveness of each treatment. The results revealed notable reductions in surface roughness: sandblasting reduced roughness by 45%, centrifugal tumbling achieved a 67% reduction, and electrolytic polishing provided a 47% improvement when applied individually. Remarkably, when all three methods were combined, the overall surface roughness decreased by 90% compared to the as-printed state. Surface topography analysis identified defects such as micropores, cracks, and dimples on the treated surfaces. Wettability assessments demonstrated enhanced hydrophilicity, with the contact angle decreasing from 82° to 35° after post-processing. This study highlights the importance of post-processing in improving the surface finish and functional characteristics of Inconel 718 produced through SLM, thereby expanding its potential for various industrial uses.

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来源期刊

Engineering Science and Technology-An International Journal-Jestech Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.20

自引率

3.50%

发文量

153

审稿时长

22 days

期刊介绍： Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. The scope of JESTECH includes a wide spectrum of subjects including: -Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing) -Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences) -Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)