Properties of SiC-reinforced aluminum alloy coatings produced by the cold gas dynamic spraying process

Sansoucy, E.; Marcoux, P.; Ajdelsztajn, L.; Jodoin, B.

doi:10.1016/j.surfcoat.2008.02.017

Cited by 135 publications

(59 citation statements)

References 34 publications

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“…The cold gas dynamic spray (CGDS) and the pulsed gas dynamic spray (PGDS) processes are an emerging thermal spray coating technology considered to as solid-state processes. Al-SiC composite coatings are successfully produced by CGDS and PGDS techniques (Ref [21][22][23][24]. However, the percentage of the hard particles confined within the deformed ductile matrix particles in the coating is low compared to that of the original feedstock powder.…”

Section: Introductionmentioning

confidence: 99%

Oxy-Acetylene Flame Thermal Spray of Al/SiCp Composites with High Fraction of Reinforcements

et al. 2009

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Aluminum matrix composites reinforced with more that 50 vol.% of SiC particles were fabricated using oxyacetylene thermal spraying. The sprayed material consisted of mixtures of aluminum powder with 60-85 vol.% of SiC particles. To favor the processing of the composite, in some cases, the SiC particles were coated with silica following a sol-gel route. This allowed obtaining as-sprayed samples with thickness above 2 mm and with porosity values below 2%. Post-processing of the samples by hot pressing allowed to reduce further the porosity of the composites and to enhance their microstructural homogeneity. The whole process of spraying and hot pressing has been optimized and the role played by the different spraying parameters and by time length and temperature of hot pressing has been also studied.

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Section: Introductionmentioning

confidence: 99%

Oxy-Acetylene Flame Thermal Spray of Al/SiCp Composites with High Fraction of Reinforcements

et al. 2009

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“…The notion of impact-induced adhesion, thereafter, has been implemented in powder processing through kinetic deposition or cold spray [9,10]. Kinetic deposition has proven successful in making coatings [11][12][13], in reclaiming damaged metallic surfaces [14], and in additively manufacturing bulk metallic materials [15].In this area of impact science, researchers have repeatedly observed a material-dependent critical velocity [16,17] [20] have been put forth to explain the underlying mechanism(s) of impact-induced adhesion, each of which enjoys partial support from observational data. For instance, sharp jumps observed in the temperature and strain in Lagrangian impact simulations have been used to support an argument for adiabatic shear localization [16,21].…”

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confidence: 99%

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confidence: 99%

Melting Can Hinder Impact-Induced Adhesion

et al. 2017

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Melting has long been used to join metallic materials, from welding to selective laser melting in additive manufacturing. In the same school of thought, localized melting has been generally perceived as an advantage, if not the main mechanism, for the adhesion of metallic microparticles to substrates during a supersonic impact. Here, we conduct the first in situ supersonic impact observations of individual metallic microparticles aimed at the explicit study of melting effects. Counterintuitively, we find that under at least some conditions melting is disadvantageous and hinders impact-induced adhesion. In the parameter space explored, i.e., ∼10 μm particle size and ∼1 km=s particle velocity, we argue that the solidification time is much longer than the residence time of the particle on the substrate, so that resolidification cannot be a significant factor in adhesion. DOI: 10.1103/PhysRevLett.119.175701 Understanding materials physics under impact has motivated extensive research in areas ranging from asteroid strikes [1] and ballistic deposition [2] to mechanochemical synthesis [3], materials failures [4,5], structural modification [6], and phase transformation [7]. Less conventionally, three decades ago, metallic powder particles were first observed to bond to metallic substrates under supersonicimpact conditions at low temperatures [8]. The notion of impact-induced adhesion, thereafter, has been implemented in powder processing through kinetic deposition or cold spray [9,10]. Kinetic deposition has proven successful in making coatings [11][12][13], in reclaiming damaged metallic surfaces [14], and in additively manufacturing bulk metallic materials [15].In this area of impact science, researchers have repeatedly observed a material-dependent critical velocity [16,17] [20] have been put forth to explain the underlying mechanism(s) of impact-induced adhesion, each of which enjoys partial support from observational data. For instance, sharp jumps observed in the temperature and strain in Lagrangian impact simulations have been used to support an argument for adiabatic shear localization [16,21]. Experimental measurements of reduced oxide content in cold spray coatings as compared to initial powder feedstock underpins an argument for oxide layer breakup [22]. Small spherical ejecta found in the coating [20] or intermetallic detected at the interface [23] suggest localized melting or interdiffusion.More consensus, however, has been attained around postmortem observations of material jets around the periphery of adhered particles [16,24,25]. We have recently, for the first time, conducted in situ observations of the impact behavior of individual supersonic metallic microparticles below and above the critical velocity and found that material ejection and jetting are crucial for adhesion [26,27]. We argued that neither shear localization nor melting are needed to account for material ejection. Rather, it can arise from the interaction of the impactinduced pressure wave with the contact periphery of the particle. A...

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“…Some methods included by the researchers are dispersion [31], stir casting [32], infiltration [33,34], squeeze casting [35], spraying [36], in-situ fabrication [37] and compo casting [38]. On the other hand, the process cannot control the process parameters and there is a certain chemical reaction between the interface of a liquid metal and reinforcement, which is not desirable.…”

Section: Liquid Phase Fabricationmentioning

confidence: 99%

A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining

Mohanty¹,

Routara²

2016

Int. J. Automot. Mech. Eng.

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The growth in the new advanced materials that are harder till date have led to the improvement of technologies used to machine them. Nowadays, new materials have been developed to be used in different sectors where lighter and harder materials are in vast requirement. Moreover, materials machined with high precision machine tools have to provide the greatest surface finish such that it catches the pace with other competitive materials. Research has shown that the electro-discharge machining (EDM) is the only machine tool that has created history in machining hard materials. In the recent years, metal matrix composites (MMCs) have an increasing demand in the industries since they are hard materials to machine and a good finish is required in the aerospace, marine, aircraft, nuclear and other similar industries. Thus, EDM has gained fame in machining MMCs. With due course, the powder mixed electro-discharge machining (PMEDM) has created efficient EDM, with the use of powders in the dielectric. The dielectric mixed EDM has been used for efficient material removal rate (MRR). With the change in technologies, the sizes of powders that have to be added in the dielectric fluid go on decreasing. In this review, studies by numerous researchers on the MMCs that are machined with the use of PMEDM are mentioned. The powders used in the experimentation are of nano size. Furthermore, the optimization technique used by the researchers is discussed in the present study.

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Properties of SiC-reinforced aluminum alloy coatings produced by the cold gas dynamic spraying process

Cited by 135 publications

References 34 publications

Oxy-Acetylene Flame Thermal Spray of Al/SiCp Composites with High Fraction of Reinforcements

Oxy-Acetylene Flame Thermal Spray of Al/SiCp Composites with High Fraction of Reinforcements

Melting Can Hinder Impact-Induced Adhesion

A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining

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