Surface strengthening pure copper by Ni-B coating

Ziyuan, Shi; Wang, Deqing; Zhou, Ding

doi:10.1016/s0169-4332(03)00753-0

Cited by 63 publications

(21 citation statements)

References 7 publications

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“…Since Taguchi method obtains the optimal level combination by choosing those levels for which S/N ratio is the highest, the optimal combination of parameters is found to be A3B3C2D2. The increased hardness of Ni-B coatings heat treated at D2 (350 • C) is quite consistent with the findings of [24]. Also 350…”

Section: Analysis Of Signal-to-noise Ratio Signal-to-noise (S/n)supporting

confidence: 87%

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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Section: Analysis Of Signal-to-noise Ratio Signal-to-noise (S/n)supporting

confidence: 87%

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

Das

Sahoo

2012

Advances in Mechanical Engineering

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“…Ziyuan et. al., [20] contradictorily reported that the corrosion performance of as coated Ni-B is greater than that of as coated Ni-P coating. Due to the contradiction in corrosion performance of Ni-B coating, this work has concentrated on comparing the corrosion performance of Ni-P and Ni-B in as-coated as well as varying annealing temperatures.…”

Section: Introductionmentioning

confidence: 98%

Comparison of electroless Ni-P/ Ni-B on corrosion performance

Leon¹,

Jappes²,

Sahayaraj³

2018

IJET

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This research work compares annealed and as-coated electroless Ni-P's resistance to corrosion and electroless Ni-B coating prepared on the mild steel substrate. The coatings' resistance to corrosion was estimated by Tafel electro chemical polarization method utilizing electrochemical analyser in 3.5wt % solution of Sodium Chloride. Both the coatings' annealing temperatures were maintained at normal intervals to consider their corrosion resistance performance. Further, the corrosion behaviour of both the coatings with their as-coated and various annealed temperature were discussed for the deliberation of deposits phases, crystallite sizes and micro strain.

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“…However, with a lower strength and poor wear resistance, this material cannot be used in certain applications where excellent strength or good wear resistance are required [1]. In order to improve the wear resistance of pure Cu, several methods have been developed that raise the strength and wear resistance, including internal oxidation [2], chemical vapor deposition (CVD) [3,4], electroplating, electroless plating [5], and other methods [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…In order to improve the wear resistance of pure Cu, several methods have been developed that raise the strength and wear resistance, including internal oxidation [2], chemical vapor deposition (CVD) [3,4], electroplating, electroless plating [5], and other methods [6][7][8]. Among these methods, electroless plating has the advantages of simplicity and greater relative feasibility in terms of changing the characteristics of a pure Cu surface [1]. Since its development by Brenner and Riddell in 1946, electroless plating has undergone a number of modifications to satisfy the challenging needs of a variety of industrial applications [9].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it can replace gold in electronic applications [16]. Ziyuan et al [1] reported that electroless Ni-B plating can be used for strengthening the surface of pure Cu. They also reported that the surface microhardness was Hv 1400 after annealing at 350 o C for 2 h and that the Ni-B layer has little effect on the electrical conductivity of the Cu matrix.…”

Section: Introductionmentioning

confidence: 99%

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