Sn and Al + Sn containing coatings were prepared on the surface of AZ91D magnesium alloy by laser surface treatment. The microstructure and composition of specimens were analyzed by metallurgical microscope, scanning electron microscope (SEM), field emission scanning electron microscope (FESEM) equipped with energy‐dispersive spectroscopy (EDS), and X‐ray diffraction (XRD).
2017/10/24· the aluminum-magnesium alloy as an example of widely spread metallic materials, we show that a coination of functional nanoengineering and nanosecond laser texturing with the appropriate treatment regimes can be successfully used to transform a
Laser surface texturing improved tribological property is regarded as an optimistic method. However, many technological parameters have crisscross effects on surface topographies, the complexity of relations between variables devoted to a tough way to express
Abstract Laser surface texturing and double glow plasma surface molybdenizing were performed on the Nickel-based alloy. The surface texture were ablated by Nd: YAG pulse laser The textured alloy surface were molybdenized. The friction and wear properties of
The surface characteristics depend to great extent on the method used for substrate preparation. In the present study, WC-12Co and WC-17Co coatings were deposited on AZ91D samples prepared using laser texturing as substrate preparation technique.
Magnesium alloy WE43 In this part, the laser beam is focused on the surface piece with a diameter of 400 mm. The angle of incidence of laser beam is 458 to limit the projection on optics instruments. A mirror with a re?ectivity rate of 100% is used.
Surface texturing is employed for enhancing the performance of the surface in its working environment. As the characterization techniques have been evolving very fast, researchers have started mimicking the natural surfaces to take the advantages of their characteristics (such as self-cleaning, load capacity, reducing coefficient of friction).
Laser Surface Texturing to Enhance CuNiIn Anti-Fretting Coating Adhesion on Ti6Al4V Alloy for Aerospace Appliion / by Vishal Uttamrao Bagade, Muthukannan Duraiselvam, Niranjan Sarangi, K Parthiban Person(en)
In this study, the surface of AZ91 magnesium alloy plasma sprayed with WC–12 wt-%Co powder was melted by pulsed Nd:YAG laser. Microstructure, chemical composition and phase analyses of the treated layers were studied by utilising a scanning electron microscope equipped with energy dispersive spectroscopy, X-ray diffraction technique and a microhardness testing machine.
The present paper describes results of study on surface texturing of 304 L stainless steel with 1064 nm Nd:YAG laser having average power of 15 W, pulse width of 100 ns, scan rate of 20 mm/s and repetition rate of 2 kHz. Detailed surface characterization was done
Femtosecond-laser-induced surface texturing of Al-Si alloy for lower friction surface M. Fujitaa,c,*, T. Somekawaa, M. Yoshidab, N. Miyanagac, T. Nakased, T. Kobayashid aInstitute for Laser Technology , 2 -6 Yamada Oka Suita, Osaka 565 0871 Japan b
Microhardness of the laser surface melted layer was improved to 85-100 VHN as compared to 35 VHN of the as-received MEZ. Pitting corrosion resistance of the laser surface melted MEZ, significantly improved in a 3.56 wt.% NaCl solution because of grain refinement and redistribution of the intermetallic phases following rapid quenching associated with the process.
Micro arc oxidation (MAO) coating was first fabried on AZ91 biomedical magnesium alloy and followed by surface laser treating. Effects of laser treating on surface characteristics of MAO coating were studied. The results indied that after surface laser treating
MCMgAl9Zn1 magnesium alloy surface layer modified by laser 2.0 kW, scan rate 0.75 m/min and powder feed rate 8±1 g/min. MCMgAl3Zn1 magnesium alloy surface layer modified by laser alloying with silicon carbide particles with parameters: laser 56 56 L.A
2019/4/19· Emerging laser-based surface texturing methods demonstrate significant potential for manufacturing these surfaces, with the advantages of high processing precision and flexibility. In this research, superhydrophobicity is achieved on engineering metal surfaces using a novel nanosecond Laser-based High-throughput Surface Nanostructuring process.
Surface characteristic analysis indied that picosecond laser texturing improved surface properties and biocompatibility mainly by altering the microstructure and morphology of materials. In addition, laser textured groove array promoted contact area and hydrophobicity of material surface.
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The present study concerns an attempt to improve the wear resistance of a commercial magnesium alloy, MEZ (rare earth 2 wt.%, Zn 0.5 wt.%, Mn 0.1 wt.%, Zr 0.1 wt.%) by dispersion of Al2O3 particles and alloying with aluminium on the surface by laser
Surface Modifiion of Ti6Al4V Alloy by Pulsed Lasers: Microstructure and Hydrophobic Behavior 9 Figure 1. Laser surface treatments1. The present study intends to investigate the effect of various laser texturing strategies in the roughness, surface structure
Magnesium alloys are mixtures of magnesium with other metals (called an alloy), often aluminum, zinc, manganese, silicon, copper, rare earths and zirconium.Magnesium is the lightest structural metal. Magnesium alloys have a hexagonal lattice structure, which affects the …
Dimpled textures were prepared by using a pulse solid laser on the surface of Al-Si alloy. The coination of laser surface texturing (LST) and MoS2 solid lubricant as well as their tribological properties were investigated in this article. The obtained friction and wear
JLMN-Journal of Laser Micro/Nanoengineering Vol. 13, No. , 20183 228 Tayloring Surface Properties of Rare Earth Magnesium Alloy for Biomedical Appliion Induced by Laser Processing Shilin Nie1,, Guan Kai2,, Haoran Yu 3, Haifeng Liu3 and Yingchun Guan1, 4,5
In an attempt to address these limitations, laser surface treatments were performed via the employment of a continuous wave Nd:YAG laser on the Mg-AZ31B alloy using laser fluences in the range of 1.06-4.24 J/mm 2 (250-1000 W). The laser-treated samples
High Power Diode Laser can be used as an economical substitute of Nd:YAG and CO2 toimprove the surface magnesium alloy by feeding the carbide particles.Originality/value: The originality of this work is applying of High Power Diode Laser for alloying
Laser shock peening (LSP) has been proved to be an innovative surface modifiion technique since its development in the 1970s. The technique was initially employed to resolve aviation and manufacturing problems for improving fatigue life, anticorrosion, and wear resistance.
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