Ni, Ni-B ve Ni-B/hBN kaplamaların elektrodepolanmasında banyo bileşenlerinin kaplama özelliklerine etkisinin incelenmesi

Year 2018, Volume: 22 Issue: 2, 661 - 670, 01.04.2018

Ersin Ünal , İsmail Hakkı Karahan

https://doi.org/10.16984/saufenbilder.322466

Cited By: 5

Abstract

 Bu çalışmada, saf nikel, Ni-B
alaşım ve Ni-B/hBN kompozit kaplamalar elektrodepolama yoluyla üretilmiştir. Bu
kaplamaları elde etmek için banyoya eklenen bileşenlerin miktarları sabit
tutulmuş ve her birinin ayrı ayrı kaplama üzerine etkileri araştırılmıştır. Üretilen
kaplamaların kristal yapıları XRD ile, yüzey morfolojileri ve kimyasal içerik
analizleri SEM ve EDS ile, elektrokimyasal davranışları ise dönüşümlü
voltametri (CV) ile incelenmiştir. Ayrıca kaplamaların korozyon dayanımları %
3.5 NaCl içeren çözelti içerisinde açık devre potansiyeli ve Tafel ekstrapolasyon
metotlarıyla belirlenmiştir. Elde edilen sonuçlara göre ince taneli, düzgün
yüzeyli ve kompakt kaplamalar üretilmiştir. Banyoya eklenen bileşenler kristal
yapıyı, korozyon dayanımını ve diğer özellikleri ciddi derecede etkilemektedir.

Keywords

Elektrodepolama, Kompozit kaplamalar

Investigation of effect of the bath components on coating properties in electrodeposition of Ni, Ni-B and Ni-B/hBN coatings

Abstract

In this study, pure nickel, Ni-B alloy and Ni-B/hBN
composite coatings were produced by electrodeposition. To obtain these
coatings, the amounts of the components added to the bath were kept constant
and the effects of bath components on the coatings were investigated
separately. Electrochemical behaviors, crystal structures, surface morphologies
and chemical composition of films analysed with cyclic coltametry (CV), XRD,
SEM and EDS, respectively. Additionally corrosion resistance of the coatings
was evaluated by open circuit potential and Tafel extrapolation methods in %3,5
w.t. NaCl solution. The results obtained in this study indicate that smooth,
compact and fine grained coatings were produced. The components added to the
electrolyte were affect crystal structure, corrosion resistance and other
properties seriously. 

Keywords

Elektrodeposition, Composite coatings, Corrosion

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