Optimization of Wear Performance of Electroless Ni-B Coating under Lubrication

Duari, Santanu; Mukhopadhyay, Arkadeb; Barman, Tapan Kumar; Sahoo, Prasanta

doi:10.18052/www.scipress.com/ijet.7.94

Cited by 10 publications

(5 citation statements)

References 9 publications

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“…The cauliflower like morphology on heat treatment has been reported in several studies. 18,24,25,35,42,43 In fact, it has been observed by Mukhopadhyay et al. 17,42 that a significant improvement in COF of electroless Ni–B coating takes place due to this kind of structure.…”

Section: Resultsmentioning

confidence: 95%

“…The cauliflower like morphology on heat treatment has been reported in several studies. 18,24,25,35,42,43 In fact, it has been observed by Mukhopadhyay et al 17,42 that a significant improvement in COF of electroless Ni-B coating takes place due to this kind of structure. Ç elik et al 25 attributed the low COF and high wear resistance to the cauliflower like structure of Ni-B coating, which acts as rigid greaser thereby reducing abrasive effect.…”

Section: Coating Surface Morphology and Surface Roughnessmentioning

confidence: 97%

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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: Resultsmentioning

confidence: 95%

Section: Coating Surface Morphology and Surface Roughnessmentioning

confidence: 97%

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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“…The friction and wear behavior of EN coatings under lubricated condition has been reported in several research works [13][14][15][16][17][18]. The tribological behavior of borohydride reduced Ni-B alloy coatings under oil lubrication has also been addressed [19][20][21]. The results obtained from the studies of tribological behavior of Ni-P, Ni-P-PTFE, Ni-P-Cu, Ni-P-CNT and Ni-B coatings indicated that the deposits have tremendous friction and wear reduction capabilities under lubricated condition.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Wear Behavior of Electroless Ni-P-W Coating under Dry and Lubricated Conditions Using RSM and Fuzzy Logic

Mukhopadhyay¹,

Duari²,

Barman³

et al. 2016

Port. Electrochim. Acta

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The present work aims to investigate and correlate the wear behavior of electroless NiP -W coating under dry and lubricated conditions with the tribological testing parameters. A pin-on-disc configuration test setup is used for the same. Taguchi's orthogonal design of experiments technique is used to carry out the experiments. Both response surface and fuzzy rule based models are seen to be effective in determining the complex interrelationship between the wear depth of the coatings and the test parameters, namely applied normal load, sliding speed and sliding duration. The coefficient of determination for fuzzy logic based predictions is seen to be higher than the regression predicted ones, indicating better modeling capabilities of the artificial intelligence technique. ANOVA results reveal that the wear depth is mostly influenced by sliding speed followed by applied normal load and sliding duration for both dry and lubricated conditions. Coating composition, phase transformation and microstructure studies are undertaken to analyze their effects on the wear behavior. Abrasive wear mechanism is seen to be the predominating under both dry and lubricated condition. The coatings are seen to suffer more wear under dry sliding condition compared to lubricated environment.

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“…the GRG in this case. Non-parallelism of lines in the interaction plots denotes significant interaction [24,25]. From Fig.…”

Section: International Journal Of Engineering and Technologies Vol 10mentioning

confidence: 96%

Optimization of Multiple Roughness Characteristics for Turning of AISI 1040 Steel under Different Cutting Conditions

Haque¹,

Kumar²,

Upadhaya³

et al. 2017

IJET

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Abstract. The present work aims to optimize multiple roughness characteristics i.e. centre line average, root mean square and mean line peak spacing roughness parameters for AISI 1040 medium carbon steel for turning operation. The turning parameters considered are feed rate, depth of cut and cutting condition and are varied at three different levels. Since the present investigation considers three process parameters at three different levels, the combinations laid down in Taguchi's L 9 orthogonal array is employed to carry out the experiments. Grey relational analysis is used for the optimization. Optimal surface roughness is achieved for a depth of cut of 0.4 mm, feed rate of 0.07 mm/rev and under water cooled cutting condition. Analysis of variance revealed the highest contribution from feed rate in controlling the surface roughness.

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Optimization of Wear Performance of Electroless Ni-B Coating under Lubrication

Cited by 10 publications

References 9 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

Investigation of Wear Behavior of Electroless Ni-P-W Coating under Dry and Lubricated Conditions Using RSM and Fuzzy Logic

Optimization of Multiple Roughness Characteristics for Turning of AISI 1040 Steel under Different Cutting Conditions

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