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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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Majumdar, Jyotsna Dutta
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Studies on laser surface processing of titanium based alloy (Ti6Al4V) with titanium, carbon and a mixture of titanium and carboncitations
- 2022Advancement in Titanium Aluminide and its High Temperature Oxidation Behaviourcitations
- 2021Structure-property-process parameters correlation of laser additive manufactured TiC dispersed titanium aluminide (Ti45Al5Nb0.5Si) compositecitations
- 2021Radio Frequency Magnetron Sputtering Coatings of Biomedical Implants Using Nanostructured Titanium Carbide Thin filmscitations
- 2020Linear reciprocating wear of yttria-stabilized zirconia-based composite coatings developed by thermal spraycitations
- 2019Microstructural Evolution and Microhardness of Direct Laser Clad TiC Dispersed Titanium Aluminide (Ti45Al5Nb0.5Si) Alloycitations
- 2019Effect of varying low substrate temperature on sputtered aluminium filmscitations
- 2016Studies on nanotribological and oxidation resistance properties of yttria stabilized zirconia (YSZ), alumina (Al2O3) based thin films developed by pulsed laser depositioncitations
- 2016Development and characterization of yttria stabilized zirconia and Al2O3 thin films by pulsed laser deposition
- 2015Phase Structure and Microstructure Of Yttria Stabilized Zirconia Thin Film Developed By Pulsed Laser Deposition
- 2013Compositionally graded thermal barrier coating by hybrid thermal spraying route and its non-isothermal oxidation behaviorcitations
- 2013Studies on yttria stabilized zirconia coating developed by pulsed laser deposition
- 2012Laser surface alloying of aluminium with WC + Co + NiCr for improved wear resistancecitations
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article
Laser surface alloying of aluminium with WC + Co + NiCr for improved wear resistance
Abstract
In the present study, laser surface alloying of aluminium with WC + Co + NiCr (in the ratio of 70:15:15) has been conducted using a 5 kW continuous wave (CW) Nd:YAG laser (at a beam diameter of 0.003 m), with the output power ranging from 3 to 3.5 kW and scan speed from 0.012 m/s to 0.04 m/s by simultaneous feeding of precursor powder (at a flow rate of 1 × 10− 5 kg/s) and using He shroud at a gas flow rate of 3 × 10− 6 m3/s. The effect of laser power and scan speed on the characteristics (microstructures, phases and composition) and properties (wear and corrosion resistance) of the surface alloyed layer have been investigated in details. Laser surface alloying leads to development of fine grained aluminium with the dispersion of WC, W2C, Al4C3, Al9Co2, Al3Ni, Cr23C6, and Co6W6C. The microhardness of the alloyed zone is significantly improved to a maximum value of 650 VHN as compared to 22 VHN of the as-received aluminium substrate. The mechanism of microhardness enhancement has been established. The fretting wear behavior of the alloyed zone was evaluated against WC by Ball-on-disc wear testing unit and the mechanism of wear was established.<br/><br/>Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Surface and Coatings Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface and Coatings Technology, [206, 15, (2012)] DOI: 10.1016/j.surfcoat.2012.01.038<br/><br/>© 2012, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/<br/>