2007
DOI: 10.3989/revmetalm.2007.v43.i3.62
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Microstructural evolution and rheological properties of AA6063 alloy produced by semisolid processing (SIMA and MHD)

Abstract: ResumenEn este trabajo se estudia el comportamiento reológico y la evolución microestructural de la aleación AA6063 sometida a dos vías de procesamiento diferentes: deformación en frío y fusión parcial (proceso SIMA) y agitación magneto hidrodinámica durante su solidificación (proceso MHD). Se estudió la evolución de la microestructura durante el mantenimiento isotérmico, con el fin de verificar si los mecanismos de maduración de Ostwald, crecimiento y coalescencia clásicos, son aplicables a aleaciones fabrica… Show more

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“…And when the n value was 3, the rate determining step of the growth process was the Ostwald ripening process or lattice diffusion from the grain boundary, but for grain boundary diffusion the n value was 4, and for the leaded process by diffusion cross dislocation the n value was 5. In some cases, the n value is possibly found higher (5 -11), because there are grain growths by coalescence [15,16].…”
Section: Sem Analysismentioning
confidence: 99%
“…And when the n value was 3, the rate determining step of the growth process was the Ostwald ripening process or lattice diffusion from the grain boundary, but for grain boundary diffusion the n value was 4, and for the leaded process by diffusion cross dislocation the n value was 5. In some cases, the n value is possibly found higher (5 -11), because there are grain growths by coalescence [15,16].…”
Section: Sem Analysismentioning
confidence: 99%