Effect of rare-earth on friction and wear properties of laser cladding Ni-based coatings on 6063Al

Wang, Chenglei; Yuan, Guangyin; Zeng, Zhichao; Fu, Yuechun

doi:10.1016/j.jallcom.2017.08.101

Cited by 91 publications

(28 citation statements)

References 25 publications

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“…It is known from this figure that the worn surface of the specimens became coarser with an increase in the wear time, and the worn degrees of the coatings were significantly slighter than those of the Ti6Al4V substrate. Moreover, it was also seen that the worn surfaces of the substrate and the coatings exhibited various distortion, CeO2 nanoparticles easily converged toward grain boundaries, which could restrain the growth of the grains, and played a key role in strengthening and purifying the grain boundaries [36,37]. As a consequence, the wear resistance of the coating modified with CeO2 nanoparticles was further enhanced compared to the coatings without CeO2.…”

Section: Wear Behaviors Of the Coatingsmentioning

confidence: 96%

“…According to Section 3.1 and Figure 5, the heterogeneous nucleation effect of CeO 2 nanoparticles increased the amount of nucleation, which was conducive to refining and compacting the crystal grains in the coatings. Furthermore, in order to equilibrate the energy of distortion, CeO 2 nanoparticles easily converged toward grain boundaries, which could restrain the growth of the grains, and played a key role in strengthening and purifying the grain boundaries [36,37]. As a consequence, the wear resistance of the coating modified with CeO 2 nanoparticles was further enhanced compared to the coatings without CeO 2 .…”

Section: Microhardness and Wear Resistance Of The Coatingsmentioning

confidence: 99%

“…Coatings 2019, 9, 109 9 of 17 distortion, CeO2 nanoparticles easily converged toward grain boundaries, which could restrain the growth of the grains, and played a key role in strengthening and purifying the grain boundaries [36,37]. As a consequence, the wear resistance of the coating modified with CeO2 nanoparticles was further enhanced compared to the coatings without CeO2.…”

Section: Microhardness and Wear Resistance Of The Coatingsmentioning

confidence: 99%

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Laser Cladding of Ti-Based Ceramic Coatings on Ti6Al4V Alloy: Effects of CeO2 Nanoparticles Additive on Wear Performance

et al. 2019

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Ti-based ceramic coatings on Ti6Al4V substrates were successfully prepared through a laser cladding process using pre-placed starting materials of TiCN + SiO2 mixed powder without or with adding a 3 wt % CeO2 nanoparticles additive, aiming at improving the wear resistance of the Ti6Al4V alloy for biological applications. The effects of the CeO2 nanoparticles additive on the microstructure, microhardness, and wear performance of the coatings were analyzed in detail. The observations showed that the main compositions of the cladding coating were TiCN and TiN phase. Compared to the coatings without CeO2, the coatings modified with CeO2 nanoparticles led to more excellent mechanical properties. The average microhardness of the coatings modified with CeO2 nanoparticles was approximately 1230 HV0.2, and the wear volume loss of the coatings modified with CeO2 nanoparticles was approximately 14% less than that of the coatings without CeO2 under a simulated body fluid (SBF) lubrication environment. The major reasons included that the microstructure of the coatings modified with CeO2 nanoparticles was refined and compact granular crystalline. The wear mechanisms of the coatings were investigated from the worn surface of the coatings, wear debris, and the worn surface of the counter-body balls. The wear mechanisms of the coatings without CeO2 included abrasive wear, adhesive wear, and fatigue wear, while the wear mechanisms of the coatings modified with CeO2 nanoparticles included only abrasive wear and adhesive wear, because the fine microstructure of the coatings had an excellent resistance to fatigue wear.

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Section: Wear Behaviors Of the Coatingsmentioning

confidence: 96%

Section: Microhardness and Wear Resistance Of The Coatingsmentioning

confidence: 99%

Section: Microhardness and Wear Resistance Of The Coatingsmentioning

confidence: 99%

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Laser Cladding of Ti-Based Ceramic Coatings on Ti6Al4V Alloy: Effects of CeO2 Nanoparticles Additive on Wear Performance

et al. 2019

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“…The protecting layer exhibits excellent corrosion and wear resistance for complex working environments [6][7][8]. Compared with traditional surface modification techniques, such as thermal spraying, physical vapor deposition, and chemical vapor deposition, coatings deposited by laser cladding possess many superior characteristics, such as a lower dilution rate, higher density, and a lower number of pores [9,10]. The chemical composition and microstructure of the layers can be changed due to the characteristics of laser processing [11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Thermal Evolution and Solidification Behavior of Laser Cladding AlSiTiNi Composite Coatings

Liu

et al. 2019

Coatings

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In order to better understand how a high energy input and a fast cooling rate affect the geometric morphology and microstructure of laser cladding aluminum composite coatings, a three-dimensional (3D) transient finite element model (FEM) has been established to study the temperature field evolution during laser cladding of AlSiTiNi coatings on a 304 stainless steel substrate. In this model, a planar Gauss heat source and a temperature selection judgment mechanism are used to simulate the melting and solidification process as well as the geometric morphology of the laser cladding coatings. The differences in physical characteristics of the cladding materials before and after melting are considered. The results of thermal simulations, including temperature history, temperature gradient, and solidification rate, of the laser cladding coatings are investigated. Corresponding experiments, conducted using an IPG-YLS-5000 fiber laser, are used to verify the simulation results. The experimental observations agree well with the theoretical predictions, which indicates that the established model is valid.

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“…After laser irradiation, the coating is fused with the thin layer on the surface of the substrate and rapidly solidified, becoming metallurgically bonded to the substrate. This surface hardening method can significantly improve the wear, corrosion, fatigue, and oxidation resistance of the substrate [ 2 , 3 , 4 , 5 , 6 , 7 ]. Compared with more traditional methods, laser cladding is safer, has a smaller affected heat zone, does not produce pollutants, and the resulting surfaces will not harm the marine environment.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Properties of Laser Cladding Al-TiC-CeO2 Composite Coatings

Dejun

Song

2018

Materials

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Al-TiC-CeO2 composite coatings have been prepared by using a laser cladding technique, and the microstructure and properties of the resulting composite coatings have been investigated using scanning electron microscopy (SEM), a 3D microscope system, X-ray diffraction (XRD), micro-hardness testing, X-ray stress measurements, friction and wear testing, and an electrochemical workstation. The results showed that an Al-Fe phase appears in the coatings under different applied laser powers and shows good metallurgical bonding with the matrix. The dilution rate of the coating first decreases and then increases with increasing laser power. The coating was transformed from massive and short rod-like structures into a fine granular structure, and the effect of fine grain strengthening is significant. The microhardness of the coatings first decreases and then increases with increasing laser power, and the maximum microhardness can reach 964.3 HV0.2. In addition, the residual stress of the coating surface was tensile stress, and crack size increases with increasing stress. When the laser power was 1.6 kW, the coating showed high corrosion resistance.

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Effect of rare-earth on friction and wear properties of laser cladding Ni-based coatings on 6063Al

Cited by 91 publications

References 25 publications

Laser Cladding of Ti-Based Ceramic Coatings on Ti6Al4V Alloy: Effects of CeO2 Nanoparticles Additive on Wear Performance

Laser Cladding of Ti-Based Ceramic Coatings on Ti6Al4V Alloy: Effects of CeO2 Nanoparticles Additive on Wear Performance

Numerical Simulation of Thermal Evolution and Solidification Behavior of Laser Cladding AlSiTiNi Composite Coatings

Microstructures and Properties of Laser Cladding Al-TiC-CeO2 Composite Coatings

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