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The Effect of Selective Laser Melting Process on the Microstructure, Density, and Electrical Conductivity of Silver-Coated Copper Cores

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Abstract

In this study, compact materials were fabricated by selective laser melting (SLM) method using copper-silver core-shell particles obtained by electroless coating method. The effect of SLM parameters such as laser power, scanning speed and hatch spacing on the important properties such as microstructure, density and electrical conductivity of compacts produced from core-shell particles was investigated. This study significantly contributes to the fact that the parameters used in the fabrication of copper-silver-based materials with the SLM method directly affect the properties of the compacts. The results showed that the silver shell thickness obtained on the core of copper powders by electroless plating method varied between 1 and 3 μm and was distributed homogeneously. It was also found that the highest apparent density value among all samples was obtained above about 99% from the sample where 100 W power, 250 mm/s scanning speed and 45% hatch spacing values were used. In addition the highest electrical conductivity value was obtained for these conditions.

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Acknowledgment

This study was financially supported by Scientific and Technological Research Council of Turkey (TÜBİTAK) through the Project no: 119M398. The authors would like to thank TÜBİTAK for its financial support in conducting this study.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey

    Temel Varol, Onur Güler, Hüseyin Can Aksa & Serhatcan Berk Akçay

  2. Department of Mechanical Engineering, Erzurum Technical University, 25050, Erzurum, Turkey

    İlyas Hacısalihoğlu, Gürkan Kaya & Fatih Yıldız

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  1. Temel Varol
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  2. İlyas Hacısalihoğlu
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  3. Gürkan Kaya
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Correspondence to Fatih Yıldız.

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This invited article is part of a special topical focus in the Journal of Materials Engineering and Performance on Additive Manufacturing. The issue was organized by Dr. William Frazier, Pilgrim Consulting, LLC; Mr. Rick Russell, NASA; Dr. Yan Lu, NIST; Dr. Brandon D. Ribic, America Makes; and Caroline Vail, NSWC Carderock.

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Varol, T., Hacısalihoğlu, İ., Kaya, G. et al. The Effect of Selective Laser Melting Process on the Microstructure, Density, and Electrical Conductivity of Silver-Coated Copper Cores. J. of Materi Eng and Perform 30, 5216–5226 (2021). https://doi.org/10.1007/s11665-021-05712-5

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