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Evolution of microstructure in an Al-Si system modified with the transition element addition and its effect on mechanicals properties.
HANSEL MANUEL MEDRANO PRIETO
CARLOS GAMALIEL GARAY REYES
CYNTHIA DEISY GOMEZ ESPARZA
Acceso Abierto
Sin Derechos Reservados
Al-System
The effect of transition element addition and solution treatment time on the microstructure and hardness of the Al-Si alloy were studied by Vickers microhardness, Rockwell B Hardness, X Ray Diffraction (XRD), Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). The A319 alloy and the A319 alloys modified with Ni were solution treatment at 495 °C for 5 and 7h, quenching in water at 60 °C and aged at 170 °C for 0.5, 3, 5, 10 and 96 h. The Ni addition between 1 and 2 wt. % to the A319 alloy have a direct effect on the microstructure, the morphology, size and distribution of precipitates during aging heat treatment, as well as, favors the formation of the Al-Fe-Ni, Al-Ni-Cu- and Al3Ni2 intermetallic phases, additionally, the Ni presence reduce the Cu content in the matrix for the Al2Cu formation due formation of Al-Ni-Cu phases.
2015
Memoria de congreso
Inglés
OTRAS
Versión revisada
submittedVersion - Versión revisada
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