Study on Preparation and Corrosion Resistance of Graphene-Ni35Co30Cu20Fe15 High Entropy Alloy Composites
Science Discovery
Volume 5, Issue 3, June 2017, Pages: 169-173
Received: May 10, 2017; Published: May 11, 2017
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Authors
Lingyu Xu, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, China
Hongnian Cai, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, China
Xingwang Cheng, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, China
Pei Wang, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, China
Meng Wang, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, China
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Abstract
The graphene/Ni35Co30Cu20Fe15 high entropy alloy composites were successfully prepared by ball milling and spark plasma sintering (SPS) methods. The microstructures and structures of graphene and composites were measured by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectroscopy. The hardness and corrosion resistance of the composites were tested by Vivtorinox hardness tester and chemical workstation. The results showed that the homogeneous distribution of graphene in the composites can be achieved by ball milling, and the original structure of graphene was not destroyed. The addition of graphene improved the hardness and corrosion resistance of high entropy alloy composites. Compared with the Ni35Co30Cu20Fe15 high entropy alloy, the hardness of the high entropy alloy with 0.3 wt.% Graphene increased from 255HV to 310HV. The addition of graphene increased the corrosion potential of the composite in 3.5% NaCl solution from -0.5V to -0.2V and the corrosion current density from 2×10-5A/cm2 reduced to 8×10-6A/cm2, which greatly improved the corrosion resistance of the material.
Keywords
Graphene, Composite Materials, Corrosion Resistance
To cite this article
Lingyu Xu, Hongnian Cai, Xingwang Cheng, Pei Wang, Meng Wang, Study on Preparation and Corrosion Resistance of Graphene-Ni35Co30Cu20Fe15 High Entropy Alloy Composites, Science Discovery. Vol. 5, No. 3, 2017, pp. 169-173. doi: 10.11648/j.sd.20170503.12
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