Elaboration of aluminium alloy metallic matrix composite with cold spray process
type: Dataset
contact point: Organization
  fn: CCSD
keyword: cold-spraying
keyword: composite-coating
keyword: -comportement-a-la-deformation
keyword: deformation-behavior
keyword: microstructure-and-properties
keyword: formation-mechanism-of-composite-coating
keyword: microstructure-et-proprietes-des-depots
keyword: construction-du-depot-composite
keyword: depots-composites-dal5056sic
keyword: theses
keyword: projection-a-froid
keyword: spiotherengineering-sciences-physicsother
keyword: infoeu-reposemanticsdoctoralthesis
landing page: https://theses.hal.science/tel-00982371
description: In cold spraying, particles are accelerated in the gas jet to achieve a high velocity and deposit on the substrate with a solid state. One of potential and important applications of cold spray is realizing the composite coatings. The incorporated ceramic particles in the composite coating can greatly influence the microstructure and properties of the coatings. The objective of this thesis was to investigate factors influencing the reinforcement content in the coatings and especially the formation mechanism in cold spraying. Al5056/SiC composite coatings were prepared by cold spraying. The effect of particle size and the reinforcement content in the powders on the reinforcement content in the coatings and thus on the microstructure and the properties of the coatings were studied. A search on the particle deformation and the formation mechanism of the composite coating was also carried out by using software of fluent and Abaqus.The results show that the addition of the SiC particles in the coating increases the hardness and improves the wear resistance of the coatings. However, the cohesion strength of the coatings first increases with the increase of the SiC content in the coating and then at a certain fraction, it decreases. Moreover, under the condition of having a similar SiC content in the coating, larger SiC particles lead to better properties of the coatings.Finally, an eulerian model was used for predicting the critical velocity by the morphology of the material jet. This model has also been extended to the composite model to demonstrate the built-up process of the composite coating during cold spraying. The calculation results show that the matrix particles deform more greatly after being impacted by the reinforcements.
identifier: NNT: 2013BELF0219
issued: 2026-05-05T13:32:24.828242
language: fr
modified: 2026-05-05T13:32:24.828247

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type: Agent

Elaboration of aluminium alloy metallic matrix composite with cold spray process
type: Distribution
access URL: https://theses.hal.science/tel-00982371
format: HTML
issued: 2026-05-05T13:32:24.829975
modified: 2026-05-05T13:32:24.812292