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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Černašėjus, Olegas
Vilnius Gediminas Technical University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2021Effect of Laser Processing Parameters on Microstructure, Hardness and Tribology of NiCrCoFeCBSi/WC Coatingscitations
- 2020Effect of Laser Processing on Surface Properties of Additively Manufactured 18-Percent Nickel Maraging Steel Parts
- 2019Surface Laser Processing of Additive Manufactured 1.2709 Steel Parts: Preliminary Studycitations
- 2017Investigation of characteristics of sprayed Ni-Cr and Ni-Cr-Wc coatings
- 2017INVESTIGATION OF CHARACTERISTICS OF SPRAYED NI-CR AND NI-CR-WC COATINGS / PURKŠTINIŲ NI-CR IR NI-CR-WC DANGŲ SAVYBIŲ TYRIMAS
- 2017THE INFLUENCE OF THERMAL SPRAY PROCESS TECHNOLOGICAL PARAMETERS ON THE PROPERTIES OF COATINGS / TERMINIO PURŠKIMO TECHNOLOGINIŲ PARAMETRŲ POVEIKIS DANGŲ SAVYBĖMS
- 2017Thermite welding of Cu–Nb microcomposite wirescitations
- 2016Investigation of the Laser Polishing Influence on the Parts Built by SLScitations
- 2016RESEARCH OF TECHNOLOGICAL PROPERTIES OF STEEL X6CRNITI18-10 WELDED JOINTS EXPLOITED IN NITRIC ACID MEDIUM / PLIENO X6CRNITI18-10, EKSPLOATUOJAMO AZOTO RŪGŠTIES TERPĖJE, VIRINTINIŲ JUNGČIŲ TECHNOLOGINIŲ SAVYBIŲ TYRIMAS
- 2015Research on laser micro polishing of sls technology sintered iron-based powder surface
- 2015RESEARCH ON LASER MICRO POLISHING OF SLS TECHNOLOGY SINTERED IRON-BASED POWDER SURFACE / SELEKTYVIUOJU LAZERINIO SUKEPINIMO BŪDU SUKEPINTŲ GELEŽIES PAGRINDO MILTELIŲ PAVIRŠIAUS LAZERINIO MIKROAPDIRBIMO TYRIMAI
- 2015Investigation of Cathodic Cleaning Processes of Aluminum Alloycitations
- 2013NiCrSiB thermal sprayed coatings refused under vibratory treatment
- 2013RESEARCH ON THE PROPERTIES OF THERMAL SPRAYED NI-CR-SI-FE-B COATINGS / TERMINIU BŪDU UŽPURKŠTŲ NI-CR-SI-FE-B DANGŲ SAVYBIŲ TYRIMAS
- 2013Research into Ni-Cr-Si-B coating sprayed onto aluminium substrate using the method of plasma spray
- 2013Research on the properties of thermal sprayed Ni-Cr-Si-Fe-B coatings
- 2013RESEARCH INTO NI-CR-SI-B COATING SPRAYED ONTO ALUMINIUM SUBSTRATE USING THE METHOD OF PLASMA SPRAY / NI-CR-SI-B DANGOS, UŽPURKŠTOS ANT ALIUMINIO SUBSTRATO PLAZMINIO PURŠKIMO BŪDU, TYRIMAS
- 2013NiCrSiB Thermal Sprayed Coatings Refused under Vibratory Treatment ; The influence of mechanical vibrations on microstructure of Ni-based thermally sprayed-fused coatings
- 2010THE RESEARCH OF INFLUENCE OF VIBROMECHANICAL TREATMENT ON NI COATINGS PT-19N-01 ADHESION
- 2010Effects of Vibration Energy Input on Stress Concentration in Weld and Heat-Affected Zone of S355J2 Steelcitations
- 2007The influence of temperature-time parameter of welded joints thermal treatment on strength-related characteristics of chromium-molybdenum and low-alloy manganese steels
Places of action
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article
Effect of Laser Processing Parameters on Microstructure, Hardness and Tribology of NiCrCoFeCBSi/WC Coatings
Abstract
<jats:p>In the present study, pulsed laser post-processing was applied to improve the properties of the thermally sprayed NiCrCoFeCBSi/40 wt.% WC coatings. The powder mix was deposited onto a mild steel substrate by flame spray method and then the as-sprayed coatings were processed by Nd:YAG laser. The peak power density applied was between 4.00 × 106 and 5.71 × 106 W/cm2, and the laser operating speed ranged between 100 and 400 mm/min, providing processing in a melting mode. Scanning electron microscopy, energy dispersive spectroscopy, Knop hardness measurements, and “ball-on-disc” dry friction tests were applied to study the effect of the processing parameters on the geometry of laser pass and microstructure, hardness, and tribology of the processed layers. The results obtained revealed that pulsed laser processing provides a monolithic remelted coating layer with the microstructure of ultrafine, W-rich dendrites in Ni-based matrix, where size and distribution of W-rich dendrites periodically vary across remelted layer depth. The composition of W-rich dendrites can be attributed to a carbide of type (W, Cr, Ni, Fe)C. The cracks sensitivity of coatings was visibly reduced with the reduction of power density applied. The hardness of coatings was between ~1070 and ~1140 HK0.2 and correlated with microstructure size, being dependent on the processing parameters. The friction coefficient and wear rate of coatings during dry sliding were reduced by up to ~30% and up to ~2.4 times, respectively, after laser processing.</jats:p>