Evaluation of microstructural, mechanical, and tribological characteristics of Ni-B-W-SiC electroless composite coatings involving multi-pass scratch test

Nemane, Vaibhav; Chatterjee, Satyajit

doi:10.1016/j.matchar.2021.111414

Cited by 31 publications

(7 citation statements)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coatings are severely deformed at the end of scratch test (figures 21(c), (f) and (i)). The scratch hardness of the stabilizer free coatings is also lower compared to ENB-W variants [45][46][47]. The coating adhesion for stabilizer free bath results in coating delamination at high temperature.…”

Section: Investigation Of Microhardness Scratch Resistance and Coatin...mentioning

confidence: 95%

Development of Ni-B electroless coating from stabilizer free bath and characterization of high temperature tribological behaviour, scratch and corrosion resistance

Agrawal¹,

Mukhopadhyay²

2022

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

The current work investigates the effects of variation of coating bath temperature on friction and wear behaviour of electroless Ni–B (ENB) coatings developed from stabilizer free bath. Coating is applied to specimens made up of AISI 1040 steel. Coatings were deposited at three different coating bath temperatures (85°C, 90°C and 95°C). Field emission scanning electron microscopy, inductively coupled plasma-optical emission spectrometer, and X-ray diffraction were used to characterize the coating for surface morphology, chemical composition, and phase structure respectively. Pin-on-disc tribo-tester was used to estimate the friction and wear behaviour of ENB coatings at room temperature (25ºC), 100ºC, 200ºC and 300ºC. The coefficient of friction was higher at high temperature due to higher roughness of the coatings obtained from stabilizer free bath, adhesion and ploughing. The wear rate at 200°C or 300°C was lower compared to 100°C. Additionally, the ENB coatings were subjected to thermogravimetric analysis which reveals higher thermal stability of coatings obtained at 95°C. A scratch tester at constant (6 N) and progressive load (5-24 N) was used to estimate the coatings scratch hardness and adhesion. The corrosion behaviour of ENB coatings in 3.5 % NaCl was studied using potentiodynamic polarization tests. The Ni-B coated specimens could efficiently provide barrier protection to steel substrate. But the corrosion potential was lower compared to lead stabilized bath.

show abstract

Section: Investigation Of Microhardness Scratch Resistance and Coatin...mentioning

confidence: 95%

Development of Ni-B electroless coating from stabilizer free bath and characterization of high temperature tribological behaviour, scratch and corrosion resistance

Agrawal¹,

Mukhopadhyay²

2022

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

show abstract

“…Cohesive cracks are caused by frictional forces between the moving indenter and the surface, the accumulation of stresses upstream and downstream of the indenter, and the movement of the indenter [17]. A similar type of damage was also observed in the work [18], where Ni-B-W alloy coatings with an embedded SiC phase were investigated. In the case of heat-treated coatings, large chipping and destruction of the coating material were observed.…”

Section: Scratch Testmentioning

confidence: 57%

Properties of Ni-B/B Composite Coatings Produced by the Electroless Method under Semi-Technical Line Conditions

Cieślak,

Gostomska,

Dąbrowski

et al. 2024

Processes

View full text Add to dashboard Cite

Composite coatings have been successfully fabricated at the laboratory scale in many research centers around the world; however, it is still a major challenge to transfer the positive results of the work to the industrial scale. This paper presents the technology for the production of Ni-B and Ni-B/B composite coatings on a pilot experimental semi-technical line by chemical reduction. A process scheme for the fabrication of Ni-B layers and composite coatings with a nickel–boron matrix and a dispersive phase in the form of boron nanoparticles was developed. All stages of the fabrication process were described in detail. The dispersion phase of the boron particles was characterized, and the performance properties of the Ni-B and Ni-B/B composite coatings produced on a pilot electroplating line were studied. The structure and morphology of the Ni-B/B composite coatings were characterized for comparison with nickel–boron coatings. Their mechanical and tribological properties and adhesion to the substrate were studied. The influence of the dispersion phase of boron particles on the structure and functional properties of the composite coatings was evaluated. In order to improve the performance of the fabricated coatings, a heating process at 400 °C was carried out, and the performance of Ni-B and composite Ni-B/B coatings was studied after the heat treatment operation.

show abstract

“…In addition, the catalytic performance of electroless composite coatings, such as Ni-Co-P [17] and Ni-P-CuO [18] coatings, were also involved. To satisfy the increasingly severe demand for various tribological applications, two or more kinds of particles have been added into the bath to further improve the coatings' tribological performance, such as Ni-P-Al 2 O 3 -WS 2 [19], Ni-P-ZrO 2 -CeO 2 [20], and Ni-B-W-SiC coatings [21]. These studies have explored the effect of different nanoparticles on the wear behavior of nickel phosphorus coatings at room temperature well.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Tribological Behavior of Electroless Plating Ni-P-Si3N4-WS2 Composite Coatings

et al. 2023

View full text Add to dashboard Cite

Electroless nickel composite coatings have the potential for high-temperature tribological applications, and a combination of high wear resistance and low friction factor is one of the desirable solutions but still a tricky problem. The addition of self-lubricating WS2 and hard Si3N4 nanoparticles to the Ni-P coatings is expected to obtain good high-temperature tribological performance. In this work, Ni-P-Si3N4-WS2 composite coatings with various contents of WS2 nanoparticles were prepared using electroless plating and subsequently annealed at 400 °C in an inert atmosphere. The tribological properties of the coatings were evaluated using a ball-on-disc wear instrument at operating temperatures from 25 to 600 °C. The microstructure, chemical composition, and surface morphology of the coatings were characterized by X-ray diffractometry (XRD), energy disperse spectroscopy (EDS), and scanning electron microscopy (SEM). Upon increasing the WS2 dosage in the bath, the WS2 content in the coating increased and the micro-hardness of the as-plated coating increased from 539 to 717 HV. After heat treatment, the coating underwent a crystallization process, and the hardness increased from 878 to 1094 HV. The main wear mechanism of the coating changed from adhesive wear in the as-plated state to abrasive wear in the annealed state. The annealed Ni-P-Si3N4-WS2 coating with a WS2 dosage of 2.5 g/L in the bath exhibited excellent mechanical properties, with a hardness of 10.9 GPa, a friction coefficient of ~0.51, and a wear rate of 8.4 × 10−15 m3N−1⋅m−1 at room temperature, and maintained optimal performance at high temperatures. At operating temperatures of 200, 400, and 600 °C, the form of wear was adhesive wear for coatings with a WS2 dosage <1.5 g/L and abrasive wear for coatings with a WS2 dosage ≥1.5 g/L. The synergism of WS2 and Si3N4 particles refined the grains of the Ni-P matrix in as-plated coatings and obviously reduced the friction coefficient of friction pairs in annealed coatings at all operating temperatures.

show abstract

Evaluation of microstructural, mechanical, and tribological characteristics of Ni-B-W-SiC electroless composite coatings involving multi-pass scratch test

Cited by 31 publications

References 83 publications

Development of Ni-B electroless coating from stabilizer free bath and characterization of high temperature tribological behaviour, scratch and corrosion resistance

Development of Ni-B electroless coating from stabilizer free bath and characterization of high temperature tribological behaviour, scratch and corrosion resistance

Properties of Ni-B/B Composite Coatings Produced by the Electroless Method under Semi-Technical Line Conditions

High Temperature Tribological Behavior of Electroless Plating Ni-P-Si3N4-WS2 Composite Coatings

Contact Info

Product

Resources

About