Study on the Electroless Ni-B Nano-Composite Coatings

Kaya, Beril; Gülmez, Turgut; Demirkol, Mehmet; Ao, Sio-Iong

doi:10.1063/1.3146199

Cited by 20 publications

(9 citation statements)

References 3 publications

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“…The reason for determining leads in the EDS analysis explained by using Lead Tungstate (PbWO 4 ) as a stabilizer. Introducing Lead (Pb) onto coating provides uniformity and shifted adhesion strength [12], [16], [17]. Moreover, the 'cauliflower' like microstructure which can be seen in Fig.…”

Section: Resultsmentioning

confidence: 98%

Effect of Heat Treatments for Electroless Deposited Ni-B and Ni-W-B Coatings on 7075 Al Alloy

Yildiz¹,

Genel²,

Gülmez³

2017

IJMMM

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Section: Resultsmentioning

confidence: 98%

Effect of Heat Treatments for Electroless Deposited Ni-B and Ni-W-B Coatings on 7075 Al Alloy

Yildiz¹,

Genel²,

Gülmez³

2017

IJMMM

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“…To improve the properties of Ni-B coatings, several composite coatings have been developed by incorporating diamond and silicon carbide particles [6]. Kaya et al [14] have incorporated nanosized diamond particles into Ni-B coating to form such a composite coating which is found to be 30 and 14 times more wear resistant than steel and normal Ni-B coatings. Ni-B-Ti coating is used by Abdeli et al [15] in order to increase the surface hardness of stainless steel.…”

Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters on Microhardness of Electroless Ni-B Coatings

Das

Sahoo

2012

Advances in Mechanical Engineering

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Electroless Ni-B coatings have found large applications due to their high hardness and wear resistance. The present paper tries to investigate the influence of coating process parameters on the microhardness of electroless Ni-B coating with the help of Taguchi analysis. Four parameters, namely, bath temperature, concentration of reducing agent, concentration of nickel source, and annealing temperature, are considered and fitted into an L 27 orthogonal array to find out the optimized condition for improved hardness of the coating. The optimized condition is found to yield about 19% improvement in hardness of the coating compared to the initial condition. The significance of the process parameters and their interactions on the hardness of Ni-B coating is studied with the help of analysis of variance, which revealed that annealing temperature and concentration of reducing agent have significant influence over the hardness characteristics of electroless Ni-B coating. The compositional, microstructural, and phase structure analyses are conducted with the help of energy-dispersive X-ray analysis, scanning electron microscope, and X-ray diffraction analyzer, respectively.

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“…At a deposition time of 90 minutes, there is a significant increase in thickness. As the deposition time increases, the coating thickness increases and a nodular growth occurs columnar on the substrate (Kaya, Gulmez, & Demirkol, 2009). With the increase of the deposition time, the coating thickness increased as a result of the accumulation of nickel ions (Shakoor, Kahraman, Gao, & Wang, 2016).…”

Section: Resultsmentioning

confidence: 99%

Biriktirme Süresinin Akımsız Nikel-Bor Kaplamaların Sertlik ve Korozyon Özelliklerine Etkisi

SARP

USTA

Tan

et al. 2022

EJOSAT

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Akımsız nikel esaslı kaplamalar, malzemelerin aşınma, sertlik ve korozyon gibi yüzey özelliklerini iyileştirmek için mükemmel bir yöntemdir. Alüminyum alaşımları ise ucuzluk ve hafiflik gibi özelliklerinden dolayı birçok uygulamada kullanılmaktadır. Alüminyum alaşımlarının bu iyi özelliklerinin yanında, düşük yüzey özellikleri endüstrideki bazı kullanım alanlarını sınırlar. Bu çalışmada, alüminyum alaşımlarının (6xxxx) yüzey özelliklerini iyileştirmek için alüminyum yüzeye akımsız nikel-bor (Ni-B) kaplamalar uygulanmıştır. Kaplama süresinin (30, 60, 90 dk.) Ni-B kaplamaların sertlik ve korozyon özellikleri araştırıldı. Yüzey morfolojisini incelemek için taramalı elektron mikroskobu (SEM) ve faz yapısını incelemek için X-ışını difraktometrisi (XRD) kullanıldı. SEM analiz sonuçlarına göre, Ni-B kaplamanın morfolojisinin artan kaplama süresi ile nodüler yapıdan karnabahar benzeri yapıya dönüştüğü deneysel çalışmalar sonucunda gözlemlenmiştir. Kaplamadaki, en yüksek sertlik değeri 90 dakikalık en yüksek biriktirme süresi ile 1140 Hv olarak elde edilmesine rağmen, en yüksek korozyon direnci 30 dakikalık en düşük biriktirme süresi ile 1.969x10-3 mpy olarak elde edilmiştir.

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Study on the Electroless Ni-B Nano-Composite Coatings

Cited by 20 publications

References 3 publications

Effect of Heat Treatments for Electroless Deposited Ni-B and Ni-W-B Coatings on 7075 Al Alloy

Effect of Heat Treatments for Electroless Deposited Ni-B and Ni-W-B Coatings on 7075 Al Alloy

Influence of Process Parameters on Microhardness of Electroless Ni-B Coatings

Biriktirme Süresinin Akımsız Nikel-Bor Kaplamaların Sertlik ve Korozyon Özelliklerine Etkisi

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