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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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Rayón Encinas, Emilio
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Topics
Publications (11/11 displayed)
- 2023Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Castingcitations
- 2023Impact of Microstructure on Remelting Parameters and Mechanical Behavior of Thermally Sprayed NiCrBSi Coatingcitations
- 2015Microstructure, mechanical, and thermogravimetric characterization of cellulosic by-products obtained from biomass seedscitations
- 2015Effect of the filler on the nanomechanical properties of polypropylene in contact with paraffinic phase change materialcitations
- 2015A study of the influence of TiO2 addition in Al2O3 coatings sprayed by suspension plasma spraycitations
- 2014PLA-PHB/cellulose based films: Mechanical, barrier and disintegration propertiescitations
- 2014Multifunctional PLA PHB/cellulose nanocrystal films: Processing, structural and thermal propertiescitations
- 2013Depth-sensing indentation applied to polymers: A comparison between standard methods of analysis in relation to the nature of the materialscitations
- 2013Microstructure and indentation mechanical properties of YSZ nanostructured coatings obtained by suspension plasma sprayingcitations
- 2012Nanoindentation study of the mechanical and damage behaviour of suspension plasma sprayed TiO2 coatingscitations
- 2011Microstructure and photocatalytic activity of suspension plasma sprayed TiO2 coatings on steel and glass substratescitations
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article
Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Casting
Abstract
<jats:p>Ni-Cr-Si-Fe-B self-fluxing alloys are commonly used in hardfacing applications; in addition, they are subjected to conditions of wear, corrosion, and high temperatures, but are not used in casting applications. In this work, gravity casting is presented as a potential manufacturing route for these alloys. Three alloys with different chemical compositions were investigated with a focus on microstructure characterization, solidification path, and strengthening mechanisms. Phases and precipitates were characterized using a field emission scanning electron microscope employing energy-dispersive X-ray spectroscopy, wavelength dispersive spectroscopy, and electron backscatter diffraction. Nano- and microhardness indentations were performed at different phases to understand their contribution to the overall hardness of the studied alloys. Hardness measurements were performed at room temperature and high temperature (650 °C). The borides and carbides were the hardest phases in the microstructure, thus contributing significantly to the overall hardness of the alloys. Additional hardening was provided by the presence of hard Ni3B eutectics; however, there was also a small contribution from the solid solution hardening of the γ-Ni dendrites in the high-alloy-grade sample. The amount and size of the different phases and precipitates depended mainly on the contents of the Cr, C, and B of the alloy.</jats:p>