Abstract
La mezcla de polvo de Ti+Ni3Al+Al2O3 a base de Fe se alea mecánicamente en un molino de bolas Spex. Los compuestos con adición de Ti+Ni3Al+Al2O3 a base de Fe se produjeron a una temperatura de sinterización de 1000 °C durante un tiempo de 1 h. Las propiedades de estos compuestos se examinaron mediante microscopía electrónica de barrido (SEM), microscopía óptica (OM), espectroscopía de dispersión de energía (EDS), difracción de rayos X (XRD) y análisis de microdureza. El producto final producido por aleación mecánica fue una solución sólida rica en níquel nanocristalina, el tamaño promedio del cristal era de unos pocos nanómetros. El contenido de titanio en el refuerzo aumentó los valores de microdureza del composite. Los compuestos producidos incluían las fases Fe3Al, TiAl, NiAl, Al3Ni2, Al2O3 y Fe3O.
Highlights
The complex shaped parts can be manufactured at the desired sizes by powder metallurgy (P/M) method
In order to contribute to the mechanical properties of the parts produced by P/M method, various alloying elements or particles can be used as reinforcing components into the metal matrix and new materials can be produced in different properties and desired shapes (Hwang et al, 1992; Coreño Alonso et al, 2000; Suryanarayana, 2001; Sheng et al, 2010)
As seen from scanning electron microscopy (SEM) micrograph; Ni3Al, Al2O3 and intermetallic compounds were homogeneously dispersed into particles as a result of mechanical grinding in the microstructure
Summary
The complex shaped parts can be manufactured at the desired sizes by powder metallurgy (P/M) method. In order to contribute to the mechanical properties of the parts produced by P/M method, various alloying elements or particles can be used as reinforcing components into the metal matrix and new materials can be produced in different properties and desired shapes (Hwang et al, 1992; Coreño Alonso et al, 2000; Suryanarayana, 2001; Sheng et al, 2010). Powders are broken with the help of balls and cold boiling occurs It is difficult for the metals and oxides to form phases with each other by classical methods (Eckert et al, 1992; Krivoroutchko et al, 2000; Pippan et al, 2006; Sheu et al, 2009; Liu et al, 2014). The composites with Fe-based Ti+Ni3Al+Al2O3 addition were produced at 1000 °C sintering temperature for 1 h sintering time
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