Electroless Ni-P/SiC Nanocomposite Coatings With Small Amounts of SiC Nanoparticles for Superior Corrosion Resistance and Hardness

Islam, Mohammad; Azhar, Muhammad Rizwan; Khalid, Yasir; Khan, Rawaiz; Abdo, Hany S.; Dar, Mushtaq Ahmad; Oloyede, Olamilekan R.; Burleigh, Thomas D.

doi:10.1007/s11665-015-1801-x

Cited by 23 publications

(10 citation statements)

References 29 publications

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“…In the case of the elastic modulus as shown in Figure 8(b) the effect of SiC codeposition is higher than heat treatment as Ni/SiC has higher elastic modulus values than both as-plated and heat treated Ni-P. The data that are reported in Figure 8 are in a good agreement with the results of other experimental efforts, since the literature [3,[47][48][49][50][51][52] reports values for the as plated, untreated condition of plain Ni-P coatings for hardness, ranging from 4 to 8 GPa, depending mainly on the P The hardness (H) and the elastic modulus (E) of as-plated Ni-P, Ni-P/SiC, and heat-treated coatings were calculated from the load-displacement curves. Figure 8 demonstrates the calculated mechanical properties, as elastic moduli and hardness, for all of the under study samples.…”

Section: Characterization Of the Mechanical Behaviorsupporting

confidence: 84%

“…The values of the present effort are somehow lower, which is most likely associated with the P content and the different synthesis route adopted. The introduction reinforcing particles leads to elastic modulus values of 150-200 GPa for the as plated condition that may rise to 220 GPa after heat treatment [47][48][49][50][51][52]57]. As in the case of the plain Ni-P coatings, in the present effort the values are lower, most likely due to same reasons, as previously stated.…”

Section: Characterization Of the Mechanical Behaviorsupporting

confidence: 68%

“…Subsequent heat treatments raise these values up 12 GP, additionally depending on the temperature of the process. As far as the modulus of elasticity is concerned, the values for the as-plated Ni-P coatings of 100-150 GPa are reported and can be slightly increased after heat treatment [49][50][51][52]. P content and processing parameters are also the key factors that affect the values of elastic modulus.…”

Section: Characterization Of the Mechanical Behaviormentioning

confidence: 99%

“…Tien et al [51], using nanoindentation technique showed the beneficial action annealing exhibits on the hardness of Ni-P-W electrolessly deposited coatings. Islam et al observed profound increase of the nanohardness of electroless Ni-P coatings due to the incorporation of SiC particles [52]. This beneficial action was attributed both to the alteration of the microstructural morphology (refinement of the nodular morphology) and plastic deformation restriction that the SiC particles may induce.…”

Section: Introductionmentioning

confidence: 99%

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Microstructural, Surface Topology and Nanomechanical Characterization of Electrodeposited Ni-P/SiC Nanocomposite Coatings

et al. 2019

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In the present study, nickel phosphorous alloys (Ni-P) and Ni-P/ silicon carbide (SiC) nanocomposite coatings were deposited by electrodeposition on steel substrates in order for their microstructural properties to be assessed while using SEM, XRD, and three-dimensional (3D) profilometry as well as nanoindentation. The amorphisation of the as-plated coatings was observed in all cases, whereas subsequent heat treatment induced crystallization and Ni3P intermetallic phase precipitation. Examination of the surface topology revealed that the surface roughness follows the deposition characteristics and heat treatment induced microstructural changes. Additionally, substantial improvements in mechanical properties, including hardness, yield stress, and elasticity modulus, were obtained for the Ni-P, Ni-P/SiC nanocomposites when heat treated as seen from the nanoindentation results. A Finite Element Analysis (FEA) was developed to simulate the nanoindentation tests that enable the precise extraction of the Ni-P and Ni-P/SiC nanocomposite coatings’ stress-strain behavior. It is shown that the correlation between the nanoindentation tests and the computational models was satisfactory, while the stress-strain curves revealed higher yield points for the heat-treated samples.

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Section: Characterization Of the Mechanical Behaviorsupporting

confidence: 84%

Section: Characterization Of the Mechanical Behaviorsupporting

confidence: 68%

Section: Characterization Of the Mechanical Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructural, Surface Topology and Nanomechanical Characterization of Electrodeposited Ni-P/SiC Nanocomposite Coatings

et al. 2019

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“…İlave edilen parçacık cinsi bu parametrelerin en önemlileri arasındadır. Birçok çalışmada SiC [7,8], SiO 2 [9,10], TiO 2 [11,12], Al 2 O 3 [13,14] ve h-BN [15][16][17][18][19][20] gibi parçacıkların akımsız nikel kaplamalara etkileri incelenmiştir. Al 2 O 3 , B 4 C, WC, SiC ve SiO 2 gibi sert parçacıkların, kaplamaların sertlik ve aşınma direncini arttırdığı, politetrafloroetilen (PTFE), grafit, karbon nanotüp ve MoS 2 gibi katı yağlayıcı parçacıkların, kaplamaların kendini yağlama özelliğini geliştiği belirlenmiştir [21].…”

Section: Heat Treatment Effect Of Hexagonal Boron Nitride Reinforced unclassified

Heat Treatment Effect of Hexagonal Boron Nitride Reinforced Electroless Nickel Coatings

2019

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ÖZETBu çalışmada, 1050 alüminyum alaşım yüzeyine hekzagonal bor nitrür (h-BN) ilaveli akımsız nikel-fosfor (Ni-P) kompozit kaplama uygulanmış ve 400°C'de 1 saat süreyle yapılan ısıl işlemin kaplama yapısına etkisi incelenmiştir. Kompozit kaplamalar, üç farklı miktarda (1, 5 ve 10 g/L) h-BN içeren çözeltide yapılmıştır. Kaplamalara, Taramalı Elektron Mikroskobu (SEM), X-ışını spektroskopisi (EDS), X-ışını kırınımı (XRD) analizleri yapılmıştır. Bunlara ilaveten yüzey pürüzlülükleri, sertlikleri ölçülmüş ve %3,5 sodyum klorür (NaCl) çözeltisi içinde elektrokimyasal korozyon deneyleri yapılmıştır. Amorf yapıdaki nikel matrisin ısıl işlem ile kristalin yapıya dönüştüğü tespit edilmiştir. Isıl işlem sonucu sertlik değerleri artmış ve en yüksek sertlik değerine (1015 ± 41 HV 0,05 ), 10 g/L h-BN içerikli çözeltide yapılan kaplamada ulaşılmıştır. Elektrokimyasal deneylerde ise ısıl işlemin kompozit kaplamaların korozyon direncini azalttığı belirlenmiştir. ABSTRACTIn this study, surfaces of 1050 aluminium alloy were coated with hexagonal boron nitride (h-BN) reinforced electroless nickel-phosphorus (Ni-P) composite coating and the effect of heat treatment on the coating structure for 1 hour at 400°C was investigated. Composite coatings were performed in solutions which consist of three different compositions (1, 5 and 10 g/L) of h-BN. A scanning electron microscope (SEM), X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis were performed on the composite coatings. Additionally, surface roughness and hardness were measured and finally, electrochemical corrosion experiments were conducted in 3.5% sodium chloride (NaCl) solution. The heat treatment process has identified a transition from the amorphous structure to crystalline in the nickel matrix. The result of heat treatment, hardness values increased and the highest value of hardness (1015 ± 41 HV 0.05 ) was achieved with the specimen coated in 10 g/L h-BN solution. In the electrochemical experiments, a reduction in corrosion resistance of the composite coatings was determined as a result of heat treatment.

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A Note on Preparation of Electroless Nickel Coating on Alumina Micro-particulates as the Forerunner to Reinforce Al-MMCs

Praveen

Raju²,

Raju

et al. 2021

Lecture Notes in Mechanical Engineering

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Electroless Ni-P/SiC Nanocomposite Coatings With Small Amounts of SiC Nanoparticles for Superior Corrosion Resistance and Hardness

Cited by 23 publications

References 29 publications

Microstructural, Surface Topology and Nanomechanical Characterization of Electrodeposited Ni-P/SiC Nanocomposite Coatings

Microstructural, Surface Topology and Nanomechanical Characterization of Electrodeposited Ni-P/SiC Nanocomposite Coatings

Heat Treatment Effect of Hexagonal Boron Nitride Reinforced Electroless Nickel Coatings

A Note on Preparation of Electroless Nickel Coating on Alumina Micro-particulates as the Forerunner to Reinforce Al-MMCs

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