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

被引：26

作者：

Mazzer, E. M. ^{[1
]}

Afonso, C. R. M. ^{[2
]}

Bolfarini, C. ^{[2
]}

Kiminami, C. S. ^{[2
]}

机构：

[1] Univ Fed Sao Carlos, Postgrad Program Mat Sci & Engn, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil

来源：

INTERMETALLICS | 2013年 / 43卷

关键词：

Age-hardening; Precipitates; Extrusion; Heat treatment; Rapid solidification processing; Microscopy; MECHANICAL-PROPERTIES;

D O I：

10.1016/j.intermet.2013.08.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 degrees C for 16 h due to a homogeneous distribution of the hardening eta' metastable phase. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：182 / 187

页数：6

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