Electrodeposition of nickel–graphene nanoplatelets (GNPs) composite coatings and evaluation of their morphological, electrochemical, and thermo-mechanical properties

被引：0

作者：

Karim, Muhammad Ramzan Abdul ^{[1
]}

Raza, Syed Abbas ^{[1
]}

Khan, Muhammad Imran ^{[1
]}

Tahir, Abu Bakar ^{[1
]}

Haq, Ehsan Ul ^{[2
]}

Pavese, Matteo ^{[3
]}

机构：

[1] Faculty of Materials and Chemical Engineering, GIK Institute of Engineering Sciences and Technology, Topi,23640, Pakistan

[2] Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore,54890, Pakistan

[3] Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Turin,10129, Italy

来源：

Applied Physics A: Materials Science and Processing | 2022年 / 128卷 / 06期

关键词：

Nickel coatings - Strain rate - Composite coatings - Corrosion rate - Metal recovery - Electrodeposition - Dispersions - Corrosion resistance - Electrodes - Graphene - Metallic matrix composites;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Nickel matrix was electrodeposited on a conducting substrate from nickel Watts’s bath having priorly dispersed graphene nanoplatelets (GNPs) to produce GNPs-Ni composite coatings. It was found, by atomic force microscopy, that addition of GNPs improved the hardness as well as the roughness of the coatings in proportion to the GNPs addition. While observing the torn surfaces under scanning electron microscope, pure nickel coatings showed a pure ductile behavior but as the volume of GNPs is increased, the torn surfaces showed nearly brittle behavior as for the 0.4 wt.% GNPs composites. The electrochemical and thermo-mechanical analysis showed 0.2 wt.% GNPs’ addition as optimum concentration with highest corrosion resistance and strain recovery in comparison to other compositions. The corrosion rate of nickel matrix was best inhibited by 0.2 wt.% GNPs addition due to the uniform dispersion and dense structure overall. The thermomechanical analysis at 473 K temperature showed highest strain recovery rate for the 0.2 wt.% GNPs composites due to homogeneous dispersion. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

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