Ni-P-W multilayered alloy coatings produced by pulse plating

Panagopoulos, C.N.; Papachristos, V.D.; Wahlström, U.; Leisner, Peter; Christoffersen, Lasse

doi:10.1016/s1359-6462(00)00446-2

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Multilayer coatings (MLCs) have recently attracted the interest of numerous researchers, owing to their increased mechanical, electrochemical, and physical properties [3,[13][14][15]. Additionally, the ability to alter the edifice of supplies to meet specific mechanical and electrochemical applications has expanded the design of materials.…”

Section: Introductionmentioning

confidence: 99%

Structural Properties of Zn-Fe Alloy Coatings and Their Corrosion Resistance

Bhat¹,

Balakrishna²,

Poornesh

et al. 2023

Coatings

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Single-layer and multilayer alloy deposits were coated onto a mild steel substrate by a single-bath electroplating process. The developed coating consists of Zn and Fe alloys having different compositions with different layers. The anticorrosion behavior of single-layer and multilayer deposits was evaluated by the potentiodynamic polarization method. The surface morphology of the deposits was studied with a scanning electron microscope. The crystal structure of the deposits was analyzed with the X-ray diffraction technique. The Fe content in the deposit was analyzed by a colorimeter and verified with energy-dispersive X-ray spectroscopy. The micro-hardness tester with a Vickers indenter was used to evaluate the microhardness of the developed single-layer and multilayer coatings. It was found that the microhardness increased with applied current densities. The Zn-Fe multilayer coatings with 300 layers deposited with square and triangular pulses at the applied current density of 2.0/3.0 A dm−2 were five and four times more corrosion-resistant, respectively, than the single-layer coating of the same thickness. The development of Zn-Fe coatings that are resistant to corrosion is particularly important for the automotive industry and steel-based vehicle parts.

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Section: Introductionmentioning

confidence: 99%

Structural Properties of Zn-Fe Alloy Coatings and Their Corrosion Resistance

Bhat¹,

Balakrishna²,

Poornesh

et al. 2023

Coatings

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“…Mild steel specimens with dimensions 40 × 20 × 0.5 mm 3 were cut from a mild steel sheet, Table 1, machined to an average roughness (Ra) of 0.3 μm and annealed at 550 °C for 2 h in an Ar-inert atmosphere.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, the possibility of tailoring the structure of those materials in conformity with the demands of certain mechanical, optical and electrochemical applications, has led to increased flexibility in materials design. However, due to their complex structure, multilayered coatings usually demand a great number of parameters to be determined for a detailed characterization of their structure including the structural and chemical periodicity, the crystallography of the sublayers, the surface and interface roughness and the coherency between the sub-layers [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Zn–Fe multilayered alloy coatings produced by electrodeposition

2018

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Zn-Fe multilayered alloy coatings were deposited on mild steel substrates using the dual bath electrodeposition technique. The produced coatings consisted of alternate Zn-1 wt% Fe and Zn-10 wt% Fe alloy sub-layers. Their periodicity length (total thickness of two adjacent alternate sub-layers) ranged between 2 and 8 μm. The surface and the crosssectional morphology of those coatings were studied with the aid of a metallurgical microscope and a scanning electron microscope. The crystal structure of the electrodeposited multilayered coatings was investigated using an X-ray diffractometer. The Zn-1 wt% Fe and Zn-10 wt% Fe alloy sub-layers consisted of two phases: the η-phase (Zn-Fe solid solution) and the δ 1-phase (intermetallic FeZn 7). A microhardness tester equipped with a Vickers intender was used to examine the microhardness of the produced coatings. It was found that the microhardness increased with the decrease of periodicity length, following a modified Hall-Petch relationship.

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“…Much work has been carried out on its corrosion behavior, wear behavior, microstructure, phase transformation, thermal stability, composition, microhardness and preparation of Ni-W-P alloys. [7][8][9][10][11][12][13][14][15][16][17][18][19] However, study on the degree of undercooling of Ni-W-P ternary alloys has not been concerned more, despite that undercooling is a native characteristic for alloy during solidification and a deep knowledge of undercooling of Ni-W-P alloy will help to control the metastable formation, grain refinement and composition homogenization to optimize the properties of Ni-W-P ternary alloy for engineering application.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of bulk liquid undercooling and crystallization behaviors of jet electrodeposition Ni–W–P alloy

Wang

Xing

et al. 2015

Bull Mater Sci

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The undercooling of Ni-W-P ternary alloy coating melt was investigated by in situ differential scanning calorimeter (DSC) with the flux processing technique. The results showed that the highest undercooling of Ni-W-P ternary alloy with 359 K was obtained as the thermal treatment temperature of the melt being 1679 K and the cooling rate being 50 K min −1 . When cooling rate is fixed, the change of undercooling depends on the melt processing temperature, and the undercooling will increase rapidly at the first stage. The effects of thermal treatment temperature and cooling rates on the undercooling were discussed.

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Ni-P-W multilayered alloy coatings produced by pulse plating

Cited by 10 publications

References 28 publications

Structural Properties of Zn-Fe Alloy Coatings and Their Corrosion Resistance

Structural Properties of Zn-Fe Alloy Coatings and Their Corrosion Resistance

Zn–Fe multilayered alloy coatings produced by electrodeposition

Characteristics of bulk liquid undercooling and crystallization behaviors of jet electrodeposition Ni–W–P alloy

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