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Microestructural analysis of WC-Co

Authors: Pijoan Aniorte, Clàudia;

Microestructural analysis of WC-Co

Abstract

Ahora es posible una visualización y caracterización más precisa de los materiales gracias al desarrollo de nuevas técnicas de inspección de materiales. Hasta ahora, se han utilizado proyecciones e imágenes bidimensionales para observar, caracterizar y analizar materiales; sin embargo, solo brindan una imagen parcial de la realidad. Se han aplicado técnicas recientes de microscopía 3D de tomografía de haz de iones enfocados (FIB) para evaluar varios materiales de carburo de tungsteno-cobalto. Para comprender y mejorar los modelos matemáticos que se utilizan actualmente para el examen del material, es esencial caracterizarlos, ya que también se pueden emplear para simulaciones de elementos finitos. El objetivo de este proyecto es profundizar en la técnica de adquisición, reconstrucción y análisis de microestructuras contrastando los datos 3D obtenidos con los datos derivados mediante técnicas bidimensionales. Será esencial tener en cuenta la orientación de los carburos del material y considerar si la clasificación es gruesa o fina. Se ha demostrado que este método es una forma confiable de caracterizar y analizar el material genuino tal como es. Los resultados del análisis tridimensional son consistentes con los valores que se han publicado en la literatura. También se mencionan ideas como el parámetro métrico desarrollado por la universidad denominado densidad del esqueleto de la fase aglutinante (𝜌���𝑠���𝑡���), y la reconstrucción 3D se puede usar para cuantificar directamente características como el área de interfase y el área de superficie específica que son difíciles de adquirir a partir del análisis 2D.

Ara és possible una visualització i caracterització més precisa dels materials gràcies al desenvolupament de noves tècniques d'inspecció de materials. Fins ara, s'han utilitzat projeccions i imatges bidimensionals per observar, caracteritzar i analitzar materials; tanmateix, només proporcionen una imatge parcial de la realitat. S'han aplicat tècniques de microscòpia 3D de tomografia de feix d'ions focalitzats (FIB) recents per avaluar diversos materials de carbur de tungstè i cobalt. Per tal de comprendre i millorar els models matemàtics que s'utilitzen actualment per a l'examen del material, és essencial caracteritzar ja que també es pot utilitzar per a simulacions d'elements finits. L'objectiu d'aquest projecte és aprofundir en la tècnica d'adquisició, reconstrucció i anàlisi de microestructures alhora que es contrasten les dades 3D obtingudes amb les derivades mitjançant tècniques bidimensionals. Tenir en compte l'orientació dels carburs del material i considerar si la granulació és gruixuda o fina serà essencial. S'ha demostrat que aquest mètode és una manera fiable de caracteritzar i analitzar el material genuí tal com és. Els resultats de l'anàlisi tridimensional són coherents amb els valors que s'han publicat a la literatura. També s'esmenten idees com el paràmetre mètric desenvolupat per la universitat anomenat densitat de l'esquelet de la fase aglutinant (𝜌��𝑠��𝑡��), i la reconstrucció 3D es pot utilitzar per quantificar directament característiques com l'àrea d'interfase i la superfície específica que són difícils d'adquirir a partir de l'anàlisi 2D.

A more precise visualization and characterization of materials is now possible because to the development of new materials inspection techniques. So far, two-dimensional projections and pictures have been used to observe, characterize, and analyze materials; nevertheless, they only provide a partial picture of reality. Recent focused ion beam (FIB) tomography 3D-microscopy techniques have been applied to evaluate various tungsten carbide-cobalt materials. In order to comprehend and improve the mathematical models currently being utilized for the examination of the material, it is essential to characterize as this may also be employed for finite element simulations. The purpose of this project is to delve into the technique for acquiring, reconstructing, and analyzing microstructures while contrasting the 3D data gained with data derived via two-dimensional techniques. Considering the orientation of the material carbides and considering if the grading is coarse or fine will prove essential. This method has been shown to be a trustworthy way to characterize and analyze the genuine material as is. The results of three-dimensional analysis are consistent with the values that have been published in the literature. Mentions to ideas like the university developed metric parameter called the skeleton density of the binder phase (𝜌����𝑠����𝑡����) are also mentioned, and 3D reconstruction may be used to directly quantify characteristics like interphase area and specific surface area that are challenging to acquire from 2D analysis.

Country
Spain
Keywords

Carbides -- Microestructure, Àrees temàtiques de la UPC::Enginyeria dels materials, WC-Co, microstructure, Composite materials -- Microestructure, 3D reconstruction, Carburs -- Microestructura, Materials compostos -- Microestructura

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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