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Effect of Annealing Temperature on the Corrosion Resistance of Electroless Produced Ni-B-W Coatings

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dc.contributor.author YILDIZ, Rasid Ahmed
dc.contributor.author GÖKSENLİ, Ali
dc.contributor.author YÜKSEL, Behiye
dc.contributor.author Muhaffel, Faiz
dc.contributor.author Aydeniz, Ali
dc.date.accessioned 2014-02-05T11:52:50Z
dc.date.available 2014-02-05T11:52:50Z
dc.date.issued 2013
dc.identifier.citation Rasid Ahmed Yildiz et al., 2013, Advanced Materials Research, 651, 263 (Volume 651) en_US
dc.identifier.uri http://hdl.handle.net/11547/807
dc.description.abstract The present work deals with the formation of Ni-B-W coating on steel by electroless plating process and evaluation of their corrosion resistance after applying heat treatments at different temperatures for 1 h. The Ni-B-W coating was prepared using alkaline borohydride- reduced electroless nickel bath. Scanning electron microscopy of the surface cross-sectional view of the electroless Ni-B-W coating was analyzed and layer characteristics was investigated. Coating structure was investigated using XRD. The study reveals that the Ni-B-W coating is amorphous in their as-plated condition and upon heat treatment at 400 0C for 1 h, Ni-B-W coating crystallize and produce nickel and nickel borides in the coatings. Annealing temperature dependence of the corrosion resistance of the coating was investigated by potentiodynamic polarisation measurements. These results show that the Ni–B-W coating annealed at 650 0C exhibit better corrosion resistance than those of coatings with other annealing temperature. The corrosion resistance increased after the crystallisation of the coating, due to factors like; decrease of porosity and internal stress and the formation of tungsten oxide on the surface acting as a protective layer. en_US
dc.language.iso en en_US
dc.publisher Advanced Materials Research en_US
dc.subject Nano-Crystallization, en_US
dc.subject Ni-B-W Coating en_US
dc.subject Electroless, en_US
dc.subject Corrosion, en_US
dc.title Effect of Annealing Temperature on the Corrosion Resistance of Electroless Produced Ni-B-W Coatings en_US
dc.type Article en_US

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