Tribological and corrosion behaviour of electroless Ni-B coating possessing a blackberry like structure

Bülbül, Ferhat; Altun, Hikmet; Küçük, Özkan; Ezirmik, Kadri Vefa

doi:10.1007/s12540-012-4011-1

Cited by 19 publications

(9 citation statements)

References 13 publications

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“…SEM investigation indicates that the morphology of the growth surface of the Ni-B coating with columnar structure is blackberry-like. The same morphology has also been observed in the study of Bülbül et al 11 The size of nodule is 0.6 μm for each blackberry of electroless Ni-B coating.…”

Section: Structural Analysis Of Coatingsmentioning

confidence: 99%

Preparation and characterization of electroless Ni–B/nano-SiO2, Al2O3, TiO2 and CuO composite coatings

Ekmekci

Bülbül

2015

Bull Mater Sci

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Ni-B/SiO 2 , Al 2 O 3 , TiO 2 and CuO composite coatings were successfully obtained by the electroless plating technique. Dispersible SiO 2 , Al 2 O 3 , TiO 2 and CuO nanoparticles were co-deposited with electroless Ni-B coating onto AISI-304 steel substrates. Deposits were characterized for its structural properties by X-ray diffraction (XRD). XRD results showed a broad peak of Ni-B and low intensity composite nanoparticle peaks. The surface and cross-section morphology of samples were analysed using a scanning electron microscope (SEM). Surface analysis showed that the incorporation in Ni-B matrix of nano-SiO 2 , Al 2 O 3 , TiO 2 and CuO particles increases the nodularity of composite coatings. The deposits are composed of a columnar structure grown along the vertical direction of the substrate surface. The results also show that electroless nanocomposite coatings tend to have greater microhardness compared with the coating without nanoparticles. The increase in the microhardness of the nanocomposite coatings reported in this study is attributed to an effect of dispersion strengthening of ceramic particles in the Ni-B matrix.

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Section: Structural Analysis Of Coatingsmentioning

confidence: 99%

Preparation and characterization of electroless Ni–B/nano-SiO2, Al2O3, TiO2 and CuO composite coatings

Ekmekci

Bülbül

2015

Bull Mater Sci

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“…According to several authors, electroless nickel-boron deposits completely cover the substrates and act as barrier coatings [112,173,174], and a positive shift of the corrosion potential is observed (Ni is nobler than Fe). The amorphous structure obtained in the asdeposited state provides high corrosion resistance in various media [131].…”

Section: Corrosion Resistance Of Electroless Nickel-boron Coatingsmentioning

confidence: 99%

Recent advances in electroless nickel‑boron coatings

Vitry

Hastir

Mégret

et al. 2022

Surface and Coatings Technology

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“…Isıl işlem uygulanmamış durumda, kaplama yapısının üzüm salkımı şeklindeki kümelerden oluştuğu görülmektedir (Şekil 2a). Benzer bir yapıya sahip olan Ni-B kaplama, daha önce AISI 304 paslanmaz çelik üzerinde de elde edilmiş ve bu yapıdaki kaplamaların ısıl işlem yapılmamasına rağmen, taban malzemeye göre daha yüksek sertlik ve düşük sürtünme özellikleri sergilediği ve korozyona karşı da katodik koruma sağladığı rapor edilmiştir [20]. Üzüm salkımı şeklindeki kümeler, küçük küresel taneciklerden müteşekkildir.…”

Section: şEkil 1 Akımsız Ni-b Kaplamaya Ait Sem-kesit Görüntüsü (Semunclassified

Isıl İşlemin Akımsız Ni-B Kaplanan Saf Titanyumun Yapısına Etkisi

Bülbül¹,

Çelik²

2014

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖZETSaf titanyum, düşük ağırlığı nedeniyle sanayide çok geniş kullanım potansiyeline sahiptir, fakat diğer taraftan düşük sertlik ve aşınma direnci, yüksek sıcaklıklarda zayıf korozyon direnci ve yüksek maliyet gibi taşıdığı bazı dezavantajlar nedeniyle kullanımı hala sınırlı olmaya devam etmektedir. Saf titanyumun bu zayıf yanlarını güçlendirmek amacıyla akımsız Ni-B kaplama alternatif çözümlerden biri olabilir. Bu çalışmada, saf titanyum üzerine akımsız kaplama yöntemi ile Ni-B kaplamalar yapılmış ve 450°C, 650°C ve 850°C sıcaklıklarda ısıl işlem uygulanmıştır. Isıl işlem uygulanmayan ve uygulanan bu kaplamalar, yapısal olarak SEM (taramalı elektron mikroskop) ve XRD (X ışını kırınım ölçer) ile karakterize edilmiştir. Kaplamaların ısıl işleme bağlı olarak amorf karakterden belirgin kristalin bir yapıya dönüştüğü gözlenmiştir.Anahtar kelimeler: Saf titanyum, akımsız Ni-B, kaplama, ısıl işlem, XRD, SEM EFFECT OF HEAT TREATMENT ON STRUCTURE OF ELECTROLESS Ni-B COATED PURE TITANIUM ABSTRACTPure titanium has a very large potential for use industrially due to its low weight, however, its usage continues to be limited because it possesses some disadvantages such as low hardness and wear resistance, weak corrosion resistance in high temperatures and high cost. In order to strengthen these weaknesses of pure titanium, electroless Ni-B deposition process, may be an alternative solution. In this study, the Ni-B coatings were deposited on pure titanium and annealed at the temperatures of 450°C, 650°C and 850°C. The non-heat treated and heat treated coatings were structurally characterized via SEM (scanning electron microscope) and XRD (x ray diffraction). These coatings transformed from amorphous structure to a pronounced crystalline structure depending on heat treatment.

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Tribological and corrosion behaviour of electroless Ni-B coating possessing a blackberry like structure

Cited by 19 publications

References 13 publications

Preparation and characterization of electroless Ni–B/nano-SiO2, Al2O3, TiO2 and CuO composite coatings

Preparation and characterization of electroless Ni–B/nano-SiO2, Al2O3, TiO2 and CuO composite coatings

Recent advances in electroless nickel‑boron coatings

Isıl İşlemin Akımsız Ni-B Kaplanan Saf Titanyumun Yapısına Etkisi

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