Microstructural aspects and mechanical properties of friction stir welded AA2024-T3 aluminium alloy sheet

被引：50

作者：

Franchim, Andreza S. ^{[2
]}

Fernandez, Fernando F. ^{[2
]}

Travessa, Dilermando N. ^{[1
]}

机构：

[1] Univ Fed Sao Paulo, Dept Ciencia & Tecnol, BR-12231280 Sao Jose Dos Campos, SP, Brazil

[2] Embraer Empresa Brasileira Aeronaut SA, BR-12227901 Sao Jose Dos Campos, SP, Brazil

来源：

MATERIALS & DESIGN | 2011年 / 32卷 / 10期

关键词：

Non-ferrous metals and alloys; Welding; Mechanical; FATIGUE;

D O I：

10.1016/j.matdes.2011.06.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, aluminium alloy AA2024-T3 thin sheets were joined by the Friction Stir Welding - FSW - process. Butt joints were obtained in 1.6 mm sheets, using an advancing speed of 700 mm/min. These joints were characterised by optical, scanning electron microscopy, tensile and fatigue mechanical tests. The results showed that the resulting microstructure is free of defects and the tensile strength of the welded joints is up to 98% of the base-metal strength. Fatigue tests result indicates an equivalent stress intensity factor (kt) of approximately 2.0 for the welded samples. Consequently, the FSW process can be advantageous compared to conventional riveting for airframe applications. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4684 / 4688

页数：5

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