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Tribological Behavior of Pulsed Electrodeposited Ni-W/SiC Nanocomposites
Published in Springer New York LLC
2018
Volume: 27
   
Issue: 10
Pages: 5236 - 5245
Abstract

Ni-14 at.% W/SiC nanocomposite coatings containing 0-6 vol.% of submicron size (0.35 μm) SiC particles were obtained using pulsed electrodeposition technique on mild steel substrate. The coatings were subsequently characterized for uniformity of SiC distribution, grain size and mechanical properties (hardness and elastic modulus) using SEM, XRD and nanoindentation techniques, respectively. It was observed that the SiC particulates were uniformly distributed within the coating. The coating matrix (Ni-W) also exhibited nanograin size. Tribological behavior of Ni-14 W/SiC nanocomposite was analyzed under dry sliding wear test conditions using pin on disk method. The interrelationship between SiC content, interparticle spacing, mechanical properties and wear behavior was analyzed. The results suggest that whereas hardness and modulus of nanocomposite coatings varied with SiC content as per Rule of Mixtures, wear mechanism can be best explained on the basis of Inverse Rule of Mixtures. © 2018, ASM International.

About the journal
JournalData powered by TypesetJournal of Materials Engineering and Performance
PublisherData powered by TypesetSpringer New York LLC
ISSN10599495
Open AccessNo
Concepts (23)
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    Binary alloys
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    Coatings
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    Electrodeposition
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    Electrodes
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    Hardness
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    Inverse problems
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    Matrix algebra
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    Mechanical properties
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    Mixtures
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    Nanocomposites
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    Silicon carbide
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    Tribology
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    Tungsten alloys
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    Wear of materials
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    HARDNESS AND ELASTIC MODULUS
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    INTER-PARTICLE SPACING
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    MILD STEEL SUBSTRATES
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    Nano-composite coating
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    Nanoindentation techniques
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    NICKEL-TUNGSTEN
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    PULSED ELECTRODEPOSITION TECHNIQUES
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    TRIBOLOGICAL BEHAVIORS
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    Metallic matrix composites