Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending

MacLean, Marissa; Farhat, Zoheir; Jarjoura, George; Fayyad, Eman M.; Abdullah, Aboubakr M.; Hassan, Mohammad K.

doi:10.1016/j.surfcoat.2019.125064

Cited by 5 publications

(6 citation statements)

References 28 publications

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“…When further increasing the Ni content to 18.8wt%, the hardness of the electroless plating process reached 82.6HRA, and then decreased with the Ni content increased. But the hardness value of WCN-H started to decreased after the Ni content of 10.6wt% [33] . The above-mentioned phenomenon clearly indicates the beneficial effect of electroless plating mixing for WC and Ni, which was more obvious at a high Ni content.…”

Section: Powder Mixingmentioning

confidence: 94%

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Min

Yang

Yao

et al. 2021

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Ni nanoparticles were coated uniformly on the surface of WC powder via a facile electroless plating method (abbreviated as WCN-EP), and then consolidated for mechanical and corrosion resistance performance characterization, in comparison with hand mixed WC-Ni (WCN-H). Under the optimized electroless plating parameters, Ni particles, less than 1 μm in average diameter, were found to be uniformly and densely wrapped on the surface of the tungsten carbide matrix of WCN-EP. In comparison, in WCN-H, the Ni particles about 1.8 μm in average diameter, were randomly distributed together with irregular WC particles. The uniform coating of Ni was found to assist the densification process of WCN-EP effectively, with higher densities and less pores than those of WCN-H at the Ni content of 10.6wt%, 25.5wt%, and 30.3 wt%. However, at the Ni content of 18.8wt%, the relative densities of WCN-EP and WCN-H both increased to the maximum value of 98%. The maximum hardness of the consolidated WCN-EP was 82.6 HRA, about 1.2 HRA higher than that of WCN-H. In addition, the consolidated WCN-EP also exhibits a superior corrosion resistance by the polarization curve analysis at an electrochemical workstation..

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Section: Powder Mixingmentioning

confidence: 94%

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Min

Yang

Yao

et al. 2021

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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“…On the other hand, there are no clear spikes in AE energy observed during the indentation of the Ni-P-Tribaloy coating. Slight changes in the AE signals can be attributed to delamination and/or the formation of small radial cracks [25]. There were no cracks detected during unloading.…”

Section: Hertzian-type Indentation Resistancementioning

confidence: 96%

“…Upon the propagation of major radial cracks, they encountered several particles that absorbed the energy, eventually leading to limiting the severity of the cracks and, in some cases, stopping them. For a crack to pass through a reinforcement particle, energy is dissipated, thus reducing the intensity of the crack [25]. was observed at the substrate-coating interface.…”

Section: Hertzian-type Indentation Resistancementioning

confidence: 99%

“…When a crack tip approaches a particle, it deflects and deviates in another direction, releasing energy in the process. In this case, deflection occurs without direct contact due to the compressive area forming around the particle, impeding the tensile forces associated with crack propagation [25]. The change in the crack path requires energy, and dissipating the energy available, in turn, contributes to toughening.…”

Section: Hertzian-type Indentation Resistancementioning

confidence: 99%

“…The deviation of the crack path consumes energy, thus depleting the driving force behind crack propagation. A crack is arrested when it loses its driving force completely upon contact with a particle [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Novel Ni-P-Tribaloy Composite Protective Coating

Mabrouk

Farhat

2023

Materials

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Oil and gas pipelines are subject to various forms of damage and degradation during their operation. Electroless Nickel (Ni-P) coatings are widely employed as protective coatings due to their ease of application and unique properties, including high wear and corrosion resistance. However, they are not ideal for protecting pipelines due to their brittleness and low toughness. Composite coatings of higher toughness can be developed through the co-deposition of second-phase particles into the Ni-P matrix. Tribaloy (CoMoCrSi) alloy possesses excellent mechanical and tribological properties making it a potential candidate for a high-toughness composite coating. In this study, Ni-P-Tribaloy composite coating consisting of 15.7 vol.% Tribaloy was successfully deposited on low-carbon steel substrates. Both the monolithic and the composite coatings were studied to evaluate the effect of the addition of Tribaloy particles. The micro-hardness of the composite coating was measured to be 6.00 GPa, 12% greater than that of the monolithic coating. Hertzian-type indentation testing was carried out to investigate the coating’s fracture toughness and toughening mechanisms. The 15.7 vol.% Tribaloy coating exhibited remarkably less severe cracking and higher toughness. The following toughening mechanisms were observed: micro-cracking, crack bridging, crack arrest, and crack deflection. The addition of the Tribaloy particles was also estimated to quadruple the fracture toughness. Scratch testing was performed to evaluate the sliding wear resistance under a constant load and a varying number of passes. The Ni-P-Tribaloy coating exhibited more ductile behavior and higher toughness, as the dominant wear mechanism was identified as material removal, as opposed to brittle fracture in the Ni-P coating.

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Interfacial microstructure evolution of solder joints by doping Cu nanoparticles into Ni(P) electroless plating

Cheng

Zhang

Liang

et al. 2020

J Mater Sci: Mater Electron

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Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending

Cited by 5 publications

References 28 publications

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Novel Ni-P-Tribaloy Composite Protective Coating

Interfacial microstructure evolution of solder joints by doping Cu nanoparticles into Ni(P) electroless plating

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Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending

Cited by 5 publications

References 28 publications

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Electroless Plating of Ni Nanoparticles on WC to Assist Its Pressureless Sintering of WC-Ni Cemented Carbide with Enhanced Mechanical and Corrosion-resistant Performance

Novel Ni-P-Tribaloy Composite Protective Coating

Interfacial microstructure evolution of solder joints by doping Cu nanoparticles into Ni(P) electroless plating

Contact Info

Product

Resources

About

Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending