Laser cladding of manganese oxide doped aluminum oxide granules on titanium alloy for biomedical applications

Zhang, Xiaoyan; Pfeiffer, Stefan; Rutkowski, Paweł; Makowska, Małgorzata; Kata, Dariusz; Yang, Jinlong; Graule, Thomas

doi:10.1016/j.apsusc.2020.146304

Cited by 33 publications

(4 citation statements)

References 36 publications

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“…For alumina it is 200 to 400 µm, and for a good quality silicon carbide it is up to 300 µm in the laser pulse mode using the Yb:KGW laser (city, country) [ 27 ]. The laser ceramic treatment depth was show also in publication [ 28 ]. However, there is no information concerning the laser cutting of anisotropic ceramic composites.…”

Section: Resultsmentioning

confidence: 99%

The Influence of Thermal Properties Anisotropy on Subtractive Laser Processing of B4C/h-BN Composites

et al. 2020

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This work concerns boron carbide matrix composites with the addition of hexagonal boron nitride particles (h-BN) as a solid lubricate. The composite materials were hot-pressed and analysed in terms of phase, structure, and microstructure changes in relation to the h-BN content. The uniaxial pressure applied during the manufacturing process allowed the orientation of single h-BN particles and its agglomerates in perpendicular direction to the pressing axis. The anisotropy of heat transfer and thermal expansion coefficient (CTE) and density changes in relation to temperature are discussed. Thermal diffusivity and conductivity were measured in relation to the material direction by the laser flash analysis method (LFA). In this paper, understanding the heat flow and CTE changes allowed explaining the results of investigated subtractive laser processes of the manufactured composites. The laser ablation process was conducted on B4C/h-BN composites in parallel and perpendicular direction to each other. It was done in a continuous work (CW) mode at 50 W with a 40 µm spot and 3 mm/s beam travel speed. The influence of h-BN particles and their orientation on thermal properties is discussed. The effect of laser processing on B4C/h-BN composites was also discussed in relation to the material surface roughness measured with a confocal microscope, microstructure observations, density, and thermal properties changes in relation to the material direction.

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Section: Resultsmentioning

confidence: 99%

The Influence of Thermal Properties Anisotropy on Subtractive Laser Processing of B4C/h-BN Composites

et al. 2020

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“…[12] Nickel-based alloys are prone to tribological attack due to their ductile matrix, accordingly, Inconel alloys, [13] and various ceramics [14,15] are widely used as feedstock materials. Lately, ceramics like carbides (TiC, [16] SiC [17] ), nitrides (TiN, [18] BN [19] ) and oxides [20] were deposited on titanium alloys. Deposition of WC and NiCrBSi coatings is quite common by thermal spray, [21,22] however, such process suffers from various restrictions.…”

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confidence: 99%

Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Al-Sayed

Samad²,

Mohamed³

et al. 2022

Metall Mater Trans A

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This study was performed to characterize surface topography and microhardness of 40 wt pct NiCrBSiC-60 wt pct WC hard coating on TC4 titanium after coaxial laser cladding via Laser Induced Breakdown Spectroscopy (LIBS) and machine learning. The high content of the hard WC particles is accomplished to enhance the abrasion wear resistance of such alloy. Various powder feeding rates were carried out during laser cladding process. The energy-dispersive X-ray analysis assured that W content in the metal matrix notably increased from 26.19 to 53.49 pct while the Ti content decreased from about 15.16 to 0.46 pct for the clad layer processed at 20 and 60 g min−1, respectively. The LIBS measurements successfully estimated such elements’ concentration as well as the clad layers' topography indicating that the effect of material matrix is a crucial challenge. Therefore, canonical correlation analysis and Belsley collinearity diagnostics were established to identify the essential emission lines from the whole spectra. Then, an optimized adaptive boosted random forest classifier was developed for microhardness investigation, with accuracy, sensitivity, and F1 score values of 0.9667. The results, confirmed by the metallurgical study, clarified that most of the titanium and tungsten emission lines have a significant impact on the surface topography as well as the microhardness values. The misclassification was attributed to the matrix effect such that the samples processed at 40 and 60 g min−1 were comparable in microstructure and chemical characterization unlike the one processed at 20 g min−1. Vickers microhardness of the metal matrix coating increased with the increase in the powder feeding rate, which is assured by the quantitative classification model. Graphical Abstract

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“…It makes the thermal stability and mechanical properties of the polyvinyl alcohol/nano MnO 2 ‐KH550 nanocomposites improved 11 . In a word, the growth of MnO 2 can provide active sites for CF surface and it has abrasion resistance and thermal stability, confirming its potential applications for the CF‐reinforced resin matrix composite 12–15 …”

Section: Introductionmentioning

confidence: 91%

Sodium citrate‐assisted synthesis of nano‐manganese oxide on carbon fiber for enhancing the mechanical and frictional performances of carbon fiber‐reinforced resin matrix composites

Zheng

Fei

Lian

et al. 2020

J of Applied Polymer Sci

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Aiming to enhance the carbon fiber (CF)/resin interfacial adhesion, this report describes the novel application of sodium citrate (SC) as an auxiliary reducing agent and surface regulator to control the morphology of nano‐manganese dioxide (MnO2) on the CF surface. The composites were fabricated by means of controlling the molar concentration ratio of SC to Mn source (0:1, 1:3, 1:2, and 1:1) in hydrothermal synthesis. The results reveal that MnO2 nanosheets on the CF surface become denser as the concentration of SC is 1/3 of Mn source, which makes advance to the surface roughness and surface energy of CF. Simultaneously, the tensile strength of as‐prepared composite is increased by 52.8%. The homologous friction coefficient tends to be high and stable and the wear volume is significantly reduced by 63.8 and 26.5% under the applied loads of 3 and 5 N in contrast with the original composites prepared without SC. As a result, it can be inferred that SC plays a crucial role in enhancing the interfacial bonding strength between the CF and matrix, providing insights into the interface control of CF‐reinforced resin matrix composites.

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Laser cladding of manganese oxide doped aluminum oxide granules on titanium alloy for biomedical applications

Cited by 33 publications

References 36 publications

The Influence of Thermal Properties Anisotropy on Subtractive Laser Processing of B4C/h-BN Composites

The Influence of Thermal Properties Anisotropy on Subtractive Laser Processing of B4C/h-BN Composites

Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Sodium citrate‐assisted synthesis of nano‐manganese oxide on carbon fiber for enhancing the mechanical and frictional performances of carbon fiber‐reinforced resin matrix composites

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