Investigation of high temperature wear resistance of electroless nickel coating with different contents of phosphorous

Ghaderi, Mohammad Reza; Rezagholizadeh, M.; Vaghefi, S M Monir; Heidary, Azam

doi:10.1134/s2070205116030126

Cited by 17 publications

(2 citation statements)

References 20 publications

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“…12 Low phosphorus Ni-P coatings show higher wear resistance in comparison with high phosphorus coatings due to the formation of an oxide film. 13 At high temperatures of 300-500 C electroless Ni-P-MoS 2 coatings show low coefficient of friction (COF) and wear rate due to the formation of oxide glazes of Mo. 14 EN coatings containing Ag has been termed ''chameleon'' due to their self-lubricating properties at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior of electroless Ni–B–W coating at room and elevated temperatures

Mukhopadhyay

Barman

Sahoo

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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Sodium borohydride reduced electroless NiB coatings possess high hardness, wear resistance, and low coefficient of friction. They are found to be suitable candidates for wear reduction of mechanical components. In a quest to achieve enhanced tribological behavior and high thermal stability, the present work reports the inclusion of W to NiB coatings. Electroless method is employed for NiB -W coating deposition on AISI 1040 steel specimens. Post deposition, the coatings are heat treated at 350 C, 400 C, and 450 C. Deposit characterization is carried out using energy-dispersive X-ray analysis, X-ray diffraction, and scanning electron microscopy. Inclusion of W leads to an increase in microhardness and thermal stability of NiB coatings. The tribological behavior of as-deposited and heat-treated NiB -W coatings are investigated at room and elevated temperatures (100 C, 300 C, and 500 C). Heat-treated coatings show lower wear rate at room temperature compared to as-deposited ones but the coefficient of friction increases. Tribological test results at elevated temperatures suggest an improvement in the wear resistance and coefficient of friction at 300 C and 500 C in comparison with 100 C. Phase transformation study post wear test indicate microstructural changes in the coating due to the in situ heat treatment at high temperature. The tribological behavior of the coatings at 100 C and 300 C is mainly governed by the loose wear debris and formation of debris patches, respectively. Whereas at 500 C, formation of protective tribo-oxide patches is also observed.

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Section: Introductionmentioning

confidence: 99%

Tribological behavior of electroless Ni–B–W coating at room and elevated temperatures

Mukhopadhyay

Barman

Sahoo

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…While maintaining the electrical conductivity of electronic products, in order to prevent effects of corrosion and wear, a nickel coating is often used [21]. The nickel coating is good in color and has relatively low discoloration.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Laser Ablation Characteristics on Nickel-Coated Beryllium Copper

Lee

2018

Metals

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Abstract:As electronic products are miniaturized, the components of the spring contact probe are made very fine. Current mechanical processing may make it difficult to perform micro-machining with a high degree of precision. A laser is often used for the high precision micro-machining due to its advantages such as a contact-free process, high energy concentration, fast processing time, and applicability to almost every material. The production of micro-electronics using nickel-coated copper is rapidly increasing and laser material processing is becoming a key processing technology owing to high precision requirements. Before applying laser material processing, it is necessary to understand the ablation characteristics of the materials. Therefore, this study systematically investigates the ablation characteristics of nickel-coated beryllium copper. Key laser parameters are pulse duration (4~200 ns) and the total accumulated energy (1~1000 mJ). The processed workpiece is evaluated by analyzing the heat affected zone (HAZ), material removal zone (MRZ), and roundness. Moreover, the surface characteristics such as a burr, spatter, and roundness shapes are analyzed using scanning electron microscope (SEM).

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Tribological Characterization of Electroless Nickel Coatings at High Temperatures

Mukhopadhyay,

Barman,

Sahoo

2023

Coatings for High-Temperature Environments

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Investigation of high temperature wear resistance of electroless nickel coating with different contents of phosphorous

Cited by 17 publications

References 20 publications

Tribological behavior of electroless Ni–B–W coating at room and elevated temperatures

Tribological behavior of electroless Ni–B–W coating at room and elevated temperatures

Experimental Investigation of Laser Ablation Characteristics on Nickel-Coated Beryllium Copper

Tribological Characterization of Electroless Nickel Coatings at High Temperatures

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