Copper–Nickel Alloy Friction Surfaced Coating on Steel Substrates for Marine Applications

Copper–nickel (Cu-Ni) alloys are candidate materials for marine applications where bio-fouling and sea water corrosion resistance is crucial. Friction surfacing is a solid-state coating that reduces substrate dilution levels and intermetallic compound (IMC) formation between immiscible systems parti...

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Bibliographic Details
Published inTransactions of the Indian Institute of Metals Vol. 77; no. 7; pp. 1847 - 1857
Main Authors Sreenu, A. V., Rao, M. Jagadeeswara, sri, T. Yagna, sri, M. Bhanu, Sarath Kumar, G. Venkata
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 2024
Springer Nature B.V
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Summary:Copper–nickel (Cu-Ni) alloys are candidate materials for marine applications where bio-fouling and sea water corrosion resistance is crucial. Friction surfacing is a solid-state coating that reduces substrate dilution levels and intermetallic compound (IMC) formation between immiscible systems particularly useful to coat Cu on steel. In the present study, Cu-Ni alloy (90% Cu and 10% Ni) was attempted coat on the steel substrate at different combinations of the axial load, rotational speed and traverse speed. The coating nature and the dimensions were correlated with processing variables. Good bonding with substrate was identified at 7.85 kN axial load, 1000 rpm rotational speed and 1.0 mm/s traverse speed. The coatings were characterized with light microscopy, scanning electron microscope, X-ray diffraction, microhardness and potentiodynamic polarization testing. It was found that the friction surfaced coatings are free from defects; having very low base metal dilution, no IMCs formation poses similar corrosion resistance as that of consumable rod under the 3.5% NaCl environment.
ISSN:0972-2815
0975-1645
DOI:10.1007/s12666-024-03291-2