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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Published in:Intermetallics 2013-12, Vol.43, p.182-187
Main Authors: Mazzer, E M, Afonso, CRM, Bolfarini, C, Kiminami, C S
Format: Article
Language:English
Subjects:
Aeronautics
Aluminum base alloys
Chip formation
Hardness
Heat treatment
Hot extrusion
Microstructure
Spray forming
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Afonso, CRM
Bolfarini, C
Kiminami, C S
description 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.
doi_str_mv 10.1016/j.intermet.2013.08.004
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subjects Aeronautics
Aluminum base alloys
Chip formation
Hardness
Heat treatment
Hot extrusion
Microstructure
Spray forming
title Microstructure study of Al 7050 alloy reprocessed by spray forming and hot-extrusion and aged at 121 degree C
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