Gracias a sus propiedades, el uso de materiales compuestos en aplicaciones industriales se ha incrementado en las últimas décadas especialmente los que cuentan con refuerzos de fibras naturales debido a su menor impacto ambiental, sin embargo, uno de los grandes desafíos que presentan este tipo de material es darles forma por medio de corte ya que se puede comprometer su integridad superficial. En el presente trabajo se realiza un análisis morfológico a material compuesto con fibra de fique evaluando la afectación superficial por corte realizado con herramienta convencional, laser y chorro de agua. El material se fabricó con seis capas de fibra de fique y resina poliéster. El estudio morfológico se llevó a cabo por medio de microscopia electrónica de barrido donde se evidenciaron altos defectos con la herramienta convencional, una afectación a la matriz en el corte con láser y un bajo impacto superficial utilizando el chorro de agua.
Aluminum alloys have been widely used in multiple applications, such as in civil construction and engine pistons. They are subjected to loads that may impair their mechanical properties. Thereby, this research aims to study the influence of anodization on the mechanical properties of alloy samples and evaluate the behavior of oxide films when subjected to tensile testing. The mechanical properties of specimens have been evaluated based on tensile and Knoop hardness tests, and strain, tensile strength, and modulus of elasticity of specimens have been determined based on the stress-strain curve. The morphology of oxide films was analyzed by scanning electron microscopy (SEM) and optical microscopy (OM). Results of anodized Al-Si alloys in both modes, i.e. pulsed and direct currents, were compared, and it was found that pulsed current was more efficient than direct current with respect to uniformity of the formed film, and that the anodization process can affect a few mechanical properties of samples. The tension testing results also revealed that the oxide film has been fractured perpendicularly towards traction. However, the oxide film hardness was not affected by the anodization mode (pulsed or direct currents). In addition, a heat treatment was efficient at improving the uniformity of anodic films.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.