Enhancement in corrosion and electrical wear resistance of copper via laser surface alloying with NiTi

Kwok, Chi Tat; Wong, Pak Kin; Man, Hau Chung

doi:10.1016/j.surfcoat.2020.126804

Cited by 23 publications

(6 citation statements)

References 75 publications

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“…Research papers on other surface engineering technologies and applications include thermally sprayed coatings [555], gaseous surface hardening of Ti-6Al-4V fabricated by selective laser melting [556], ceramic based self-lubricating coating fabricated on plasma electrolytic oxidation (PEO) ceramic coating [557], laser surface alloying of a commercially pure copper with NiTi powder [558], manganese phosphate conversion coatings with different crystal sizes on AISI 52100 steel [559], high velocity oxy-fuel sprayed Inconel 625 coatings [560], thermo-reactive diffusion (TRD) Cr−V−C composite coatings grown on ductile iron [561] and liquid-phase hydrothermal deposition of MoS 2 into TiAl coatings on Ti6Al4V alloy [562].…”

Section: Nitriding Carburizing and Other Additive Surface Engineering...mentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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Section: Nitriding Carburizing and Other Additive Surface Engineering...mentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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“…Comprehensive studies have been carried out on the surface modification of various materials using laser alloying, for example, on cast irons [8][9][10], steels [11,12], non-ferrous metals [13][14][15], and alloys [16][17][18]. Furthermore, the mechanisms of wear resistance of laser-alloyed coatings have been studied in references [8,[11][12][13], and the corrosion resistance of metallic materials with different laser-alloyed coatings investigated in [19][20][21][22][23][24][25]. For example, in order to improve the corrosion resistance of industrially pure copper, researchers prepared various coatings including Ni and Ti [13,15,22,23].…”

Section: Introductionmentioning

confidence: 99%

Properties of Laser-Alloyed Stainless Steel Coatings on the Surface of Gray Cast Iron Discs

Wang,

Hao,

Zhou

et al. 2024

Lubricants

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The influence of laser-alloyed stainless steel coatings on the properties of the surfaces of cast iron discs, such as friction-induced vibration and noise, friction coefficient, residual stress, hardness, and corrosion resistance, was investigated in this study. The experimental results show that after laser alloying, the surface hardness of the cast iron discs increased significantly. The residual stresses on the surfaces of the laser-alloyed discs changed from tensile to compressive residual stresses, while any compressive residual stresses increased by more than six times. Most of the laser-alloyed discs demonstrated better performance in friction-induced vibration and noise damping and friction reduction. Metallographic observation and XRD (X-ray diffraction) analysis results show that the laser-alloyed layer is mainly a mixture of acicular martensite and dendritic material, while the phase composition of laser-treated discs is mainly martensitic, [Fe, Ni], Fe3Si, Cr23C6, and austenite, which plays a significant role in the improvement of the properties of the laser-alloyed cast iron in physics, tribology and corrosion resistance. This research has significance for the laser surface treatment of various cast irons and steels, which is an increasingly important manufacturing technology in the vehicle friction brake industry.

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“…Devices operated under extreme working conditions are subjected to the risk of severe surface degradation leading to a premature failure of the components and, in turn, to increased economic costs. Usually, degradation of materials is initiated from the surface flaws represented by dents, scratches and any other imperfections and leads to a reduction in the lifespan of the components [9,10]. The mechanisms and peculiarities of the formation and relaxation of indents, scratches and chips have a major role in the mechanical machining of NiTi alloy and its performance [11].…”

Section: Introductionmentioning

confidence: 99%

Surface Deformation Recovery by Thermal Annealing of Thermal Plasma Sprayed Shape Memory NiTi Alloys

et al. 2023

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The shape memory effect is the most important attribute of shape memory alloys where material can recover to its initial shape after deformation by heating above its transformation temperature. In this article, the thermally induced recovery of well-defined microscopic deformation in a NiTi shape memory alloy was investigated. Surface deformation was performed by indenting the plasma sprayed NiTi shape memory alloy in a martensitic phase at room temperature using spherical indenters. In this article, a series of indentations, scratch lines and wear lines were made on the surface of two different NiTi shape memory alloys at the micrometre scale using two spherical indenters with different radii. Three-dimensional imaging of indentation topography using scanning confocal microscopy provided direct evidence of the thermally induced martensitic transformation of these plasma sprayed thick films allowing for partial recovery on the micro-scale. The partial recovery is achieved at various indentation depths and for different scratches and wear volumes.

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Enhancement in corrosion and electrical wear resistance of copper via laser surface alloying with NiTi

Cited by 23 publications

References 75 publications

A review of advances in tribology in 2020–2021

A review of advances in tribology in 2020–2021

Properties of Laser-Alloyed Stainless Steel Coatings on the Surface of Gray Cast Iron Discs

Surface Deformation Recovery by Thermal Annealing of Thermal Plasma Sprayed Shape Memory NiTi Alloys

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