Coating formation, fracture mode and cavitation performance of Fe40Al deposited by cold gas spraying

Cinca, N.; List, Alexander; Gärtner, F.; Guilemany, J.M.; Klassen, Thomas

doi:10.1179/1743294414y.0000000420

Cited by 7 publications

(3 citation statements)

References 33 publications

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“…Since the temperature remains below the melting point of the particles material, CS can minimise effects of oxidation, melting, evaporation and other common problems suffered by thermal spraying processes [37]. Comprehensive analyses of cold spraying were performed with computational methods to evaluate the bonding mechanisms of the particles on the substrate [38,39] and to predict the particle temperatures and velocities at the impact on a surface as a function of different parameters [40]. The bonding between particles and substrate is mainly related to the material high strain rate deformation, occurring during the impact, and the localised heating of the interacting surface [41,42].…”

Section: Introductionmentioning

confidence: 99%

A perspective review on the bonding mechanisms in cold gas dynamic spray

Viscusi

Astarita

Gatta

et al. 2019

Surface Engineering

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The Cold Gas Dynamic Spray technology, generally referred as Cold Spray, is a relatively new additive manufacturing technique able to produce fully dense coatings through the deposition of particles on a substrate. Fine powders are accelerated to high velocity and projected onto a substrate, upon impact with the target surface, conversion of kinetic energy to plastic deformation occurs and the solid particles deform and bond together. During the cold spray deposition process, the particles remain in a solid state during the deposition, resulting in high-quality coatings with low residual stresses and oxide inclusions. The relative lower process temperatures allow the cold spray to manufacture coatings on high temperature-sensitive materials. It could also be a valid method for deposition of a wide variety of materials, from metallic alloys up to ceramics and composites. Depending on the materials employed as substrate and coating, different bonding mechanisms can occur during the deposition. The present review aims to summarise the main bonding theories proposed up to now for the cold spray, focusing on both the particle deformation behaviour during the contact with the surface and the interfacial bonding mechanisms. The available theories for different substrate/coating configurations will be discussed and compared. The effects of deposition parameters, the substrate's surface and microstructure of feedstock powders on the bonding mechanism will also be discussed.

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Section: Introductionmentioning

confidence: 99%

A perspective review on the bonding mechanisms in cold gas dynamic spray

Viscusi

Astarita

Gatta

et al. 2019

Surface Engineering

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“…The cavitation wear and corrosion resistance of such Fe 40 at.% Al coatings have been characterized [110]. They exhibited reasonably good cavitation performance in fresh water with a low wear rate.…”

Section: Ti-al Coatingsmentioning

confidence: 99%

Transition Metal Aluminide Coatings and Initial Steps on Additive Manufacturing

Luis¹

2018

Intermetallic Compounds - Formation and Applications

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During the last decades, Fe-, Ni-and Ti-based aluminides have been studied in terms of bulk materials with an effort to develop alloying and processing strategies to overcome their low ductilities and toughness compared to conventional alloys. Whenever significant improvements can be addressed in this direction, they will be opened to an extensive range of industrial applications, especially those related to high temperature resistance requirements. In parallel, progressing interest has also been focused on their application as protective layers. This chapter is intended to provide a review of the evolution that has been made mainly during the last two decades of the several coating technologies devoted for this purpose. From thick to thin coatings are revised, with insight into coating microstructures and properties as well. Lack of space has forced the selection of those technologies arising most interest within last years; therefore, the content will follow this order: joining (laser cladding and electrospark deposition), thermal spraying (high velocity oxygen fuel and cold spraying) and physical vapor deposition (magnetron sputtering and cathodic arc deposition).

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“…The addition of Al powders into the feedstock powders may improve the deposition efficiency of Fe powders. Previous studies about Fe/Al cold-sprayed coatings mostly used an Fe/Al alloy as a feedstock powder [ 32 ]. However, dual-phase Fe/Al composite powders are rarely applied in cold spraying as feedstock powders.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Fe/Al Ratio and Substrate Hardness on Microstructure and Deposition Behavior of Cold-Sprayed Fe/Al Coatings

et al. 2023

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Fe/Al composite coatings with compositions of Fe-25 wt.% Al, Fe-50 wt.% Al and Fe-75 wt.% Al were deposited on pure Al and P91 steel plates by a cold spray, respectively. The microstructure of the cross-section of the fabricated coatings was characterized by SEM and EDX. The bonding strength between the coatings and substrates was measured and analyzed. The effects of the Fe/Al ratios and substrate hardness on the deposition behavior were investigated. It was interesting to find fragmented zones in all fabricated coatings, which were composed of large integrated Al particles and small fragmented Al particles. Meanwhile, the fraction of fragmented zones varied with the fraction of the actual Fe/Al ratio. An Fe/Al ratio of 50/50 appeared to be an optimized ratio for the higher bonding strength of coatings. The in situ hammer effect caused by larger and harder Fe particles played an important role in the cold spray process. The substrate with the higher hardness strengthened the in situ hammer effect and further improved the bonding strength.

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Coating formation, fracture mode and cavitation performance of Fe40Al deposited by cold gas spraying

Cited by 7 publications

References 33 publications

A perspective review on the bonding mechanisms in cold gas dynamic spray

A perspective review on the bonding mechanisms in cold gas dynamic spray

Transition Metal Aluminide Coatings and Initial Steps on Additive Manufacturing

The Effect of Fe/Al Ratio and Substrate Hardness on Microstructure and Deposition Behavior of Cold-Sprayed Fe/Al Coatings

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