Mechanical and tribological properties of electroless nickel phosphorous and nickel Phosphorous-Titanium nitride coating

Umapathi, D.; Devaraju, A.; Rathinasuriyan, C.; Raji, A.

doi:10.1016/j.matpr.2019.11.283

Cited by 11 publications

(4 citation statements)

References 20 publications

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“…EN 8 steel used in many mechanical parts due to better strength and toughness characteristics resulted in distinguished applications (connecting rod, spindles, axles, and so on) of automotive parts [63,64]. Al 6061 alloy is used in commercial engineering and automotive applications due to better mechanical properties and ductility [9,65]. e chemical composition of Al 6061 alloy disc and EN8 steel pin is presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Yadav¹,

Lakshmikanthan²,

Ranganath

et al. 2022

Advances in Materials Science and Engineering

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Most mechanical systems (in particular, gear transmission system) undergo relative motion which results in increased friction phenomenon (friction coefficient, stresses, and wear rate) and thereby results in loss of efficiency. Mechanical parts undergo relative motion in different geometry configurations and orientations that induce a different state of stress as a result of friction. Till date, attempts are being made to minimize the friction with full sphere pin geometry configuration. The present work focused to reduce the frictional and wear rate, and experiments are conducted with tribo-pairs. i.e., nickel-coated pin surface slide against Al6061 alloy disc. The friction studies are carried out at different loads and geometries of pin surfaces (sphere and hemisphere configured at different orientations such as full sphere and hemisphere configured at 0°, 45°, and 90°) to induce different stress states with reference to sliding directions. Change in the geometry of EN8 pin material and their orientation with reference to sliding direction resulted in a different state of stress. The resulting stress levels were examined under the scanning electron microscope, which revealed the mechanisms of adhesion, abrasion, and extrusion. At a lower magnitude of orientation and load, the extent of asperity breaking lessens and material removal from pin surface decreases. Abrasion wear mechanism was observed corresponding to full sphere configuration on Al 6061 disc, whereas adhesive wear mechanisms are seen with hemisphere pins. The amount of aluminum transfer on pin surface with a hemisphere pin is comparatively more than that of full sphere configuration. At a lower magnitude of state of stress, the mechanism of sliding was dominated by the adhesion effect. At a higher level of state of stress, the mechanism of sliding was dominated by abrasion and extrusion.

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Section: Methodsmentioning

confidence: 99%

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Yadav¹,

Lakshmikanthan²,

Ranganath

et al. 2022

Advances in Materials Science and Engineering

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“…The theoretical NiP mass of each coupon, in function of its thickness, can be determined by the following equation: m=ρ.S.e where, m = mass of NiP coating (g), S = surface area (cm 2 ), e = NiP thicknesses (mm) and ρ = density of NiP coating (7.95 g/cm 3 ), calculated on the basis of the work carried out by Parkinson [14] and Umapathi et al [15].…”

Section: Methodsmentioning

confidence: 99%

Performance of Propargyl Alcohol as Corrosion Inhibitor for Electroless Nickel-Phosphorus (NiP) Coating in Hydrochloric Acid Solution

Mainier¹,

Silva²,

Araujo³

2021

JNMES

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The electroless nickel-phosphorus (NiP) coatings have been used with great success in oil production equipment and accessories, such as pipes, valves, pumps, adapters, rings, connectors and various types of special tools. In the acidification or acid stimulation of oil wells, to increase their productivity, a hydrochloric acid (HCl) solution is preferably injected from concentrations of 5 to 28%, aiming at the dissolution of a reservoir rock constituted of limestone and dolomite. In addition, the HCl solutions are also used to remove lime scale adhering to carbon steel pipes, where propargyl alcohol as a corrosion inhibitor, has shown good anticorrosion protection. The aim of this work is centred on the laboratory evaluation of NiP coating in 5% and 10 % HCl solution, and addition of propargyl alcohol as a corrosion inhibitor. The mass loss and polarisation curves proved to be very promising with propargyl alcohol as a corrosion inhibitor.

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“…Under oil-lubrication conditions, the CNTs in the Ni matrix control the dislocation motion of the alloy matrix, resulting in the lowest cost in Ni-P-CNT coatings [ 70 , 94 ]. Ni-P coatings, TiN, and SiC particle reinforcement minimize the wear loss [ 95 , 96 ]. This is due to the increased hardness of the coating as a result of the addition of TiN and SiC particles.…”

Section: Ni-p–ni-p Composite Coatingsmentioning

confidence: 99%

Advancements in Nickel-Phosphate/Boron Based Electroless Composite Coatings: A Comprehensive Review of Mechanical Properties and Recent Developments

Chintada,

Gurugubelli,

Tamtam

et al. 2023

Materials

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Nickel-Phosphate/Boron (Ni-P/B) electroless coatings have been widely used to improve physical and mechanical properties in various industrial applications, including the automotive, aerospace, chemical processing, food, oil and gas, electronic, textile, and printing industries. Electroless nickel coatings are one of the most popular surface-coating methods due to their low cost and short processing time. The purpose of this review is to look at several coating materials and the existing processes for making electroless coatings on different materials. The improvement of Ni-P/B composite coatings by the incorporation of secondary particles into an alloy matrix at the macro, micro, and nano levels is explained in detail. Process parameters like type of surfactant, annealing temperature, size of the reinforcement material, and reducing-agent percentage on mechanical characteristics like hardness, high-temperature oxidation behaviour, friction, coefficient, wear, and corrosion have been broadly researched and illustrated clearly.

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Mechanical and tribological properties of electroless nickel phosphorous and nickel Phosphorous-Titanium nitride coating

Cited by 11 publications

References 20 publications

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Performance of Propargyl Alcohol as Corrosion Inhibitor for Electroless Nickel-Phosphorus (NiP) Coating in Hydrochloric Acid Solution

Advancements in Nickel-Phosphate/Boron Based Electroless Composite Coatings: A Comprehensive Review of Mechanical Properties and Recent Developments

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