Microstructure study of Al 7050 alloy reprocessed by spray forming and hot-extrusion and aged at 121 degree C

Microstructure study of Al 7050 alloy reprocessed by spray forming and hot-extrusion and aged at 121 degree C

In this study, machined chips of Al 7050 alloy derived from the aeronautic industry were reprocessed by spray forming technique and hot extrusion. The microstructures and hardness of the deposit and their subsequent development resulting from heat treatment and hot extrusion were investigated. The r...

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Bibliographic Details
Published in:Intermetallics Vol. 43; pp. 182 - 187
Main Authors: Mazzer, E M, Afonso, CRM, Bolfarini, C, Kiminami, C S
Format: Journal Article
Language:English
Published: 01-12-2013
Subjects:
Aeronautics
Aluminum base alloys
Chip formation
Hardness
Heat treatment
Hot extrusion
Microstructure
Spray forming
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Summary:In this study, machined chips of Al 7050 alloy derived from the aeronautic industry were reprocessed by spray forming technique and hot extrusion. The microstructures and hardness of the deposit and their subsequent development resulting from heat treatment and hot extrusion were investigated. The results show that spray forming contributed to providing a refined and homogeneous microstructure after aging heat treatment at 121 degree C for 16 h due to a homogeneous distribution of the hardening eta ' metastable phase.
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ISSN:0966-9795
DOI:10.1016/j.intermet.2013.08.004