Mechanical and microstructural characterization of laser-welded joints of 6013-T4 aluminum alloy

2014 ◽  
Vol 37 (1) ◽  
pp. 133-140 ◽  
Author(s):  
Rafael Humberto Mota de Siqueira ◽  
Aline Capella de Oliveira ◽  
Rudimar Riva ◽  
Antonio Jorge Abdalla ◽  
Carlos Antonio Reis Pereira Baptista ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Welded Joints ◽  
Microstructural Characterization

Microstructural characterization of interrupted aging on an AA7050 aluminum alloy

2019 ◽  
Vol 152 ◽  
pp. 180-187 ◽  
Author(s):  
S.C. Jacumasso ◽  
P.H.F. Oliveira ◽  
J.P. Martins ◽  
A.L.M. Carvalho
Keyword(s):  
Aluminum Alloy ◽  
Microstructural Characterization

Mechanical Characterization of 2219 Aluminum Alloy Welded Joints Under Bi-Axial Loading

2019 ◽  
Vol 11 (08) ◽  
pp. 1950077 ◽  
Author(s):  
Guanglong Cao ◽  
Cheng Huang ◽  
Tong Li ◽  
Yahui Zhang ◽  
Mingfa Ren
Keyword(s):  
Aluminum Alloy ◽  
Welded Joints ◽  
Mechanical Characterization ◽  
Axial Loading ◽  
Failure Behavior ◽  
Shear Load ◽  
Tensile Shear ◽  
2219 Aluminum Alloy ◽  
Mechanical Performances

The mechanical performances of welded joints under bi-axial loading are significant to the reliability of various engineering structures. However, the protocol for the mechanical characterization of welded joints still needs to be improved to represent the mechanical performances of welded joints under complex loading conditions. In this work, an experimental design is proposed for the mechanical characterization of 2219 aluminum alloy welded joints. The target is to investigate the effects of combined tensile-shear load on the mechanical responses and failure behavior of 2219 aluminum alloy welded joints. The tensile-shear characterization was then conducted using a newly developed U-notch aluminum alloy welded joints specimen. In addition, standard tensile test and standard shear test were conducted to validate of the U-notch specimen design. This newly proposed experimental protocol is suitable to obtain mechanical properties of 2219 aluminum alloy welded joints subjected to tensile-shear load.

Fatigue Prediction by Thermographic Method of Aluminum Alloy 6082 Panels: Comparison Between FSW and MIG Welding

2007 ◽  
Vol 23 (04) ◽  
pp. 215-222
Author(s):  
Vincenzo. Crupi ◽  
Alberto. Marinò ◽  
Marco Biot ◽  
Giacomo. Risitanoison
Keyword(s):  
Aluminum Alloy ◽  
Welded Joints ◽  
Fatigue Behavior ◽  
Experimental Tests ◽  
Mig Welding ◽  
Friction Stir ◽  
Traditional Procedure ◽  
Thermographic Analysis ◽  
Good Agreement

This paper focuses on the fatigue behavior of aluminum alloy welded joints, which can represent points of weakness in the ship structure. The traditional methods of fatigue assessment of welded joints have some limitations and are extremely time consuming. The Risitano method, based on thermographic analysis, has been applied to overcome these difficulties by predicting the fatigue behavior of welds. Experimental tests have been carried out to assess and compare the fatigue capability(S-N curves, endurance limits) of different welded joints, obtained by means of friction stir welding (FSW) and metal inert gas (MIG) welding. Fatigue predictions obtained resorting to the thermographic method (TM) show good agreement with those derived from the traditional procedure. Thus, TM proves to be a powerful tool also for the characterization of the kind of welded joints mentioned.

Microstructural characterization of 5083 aluminum alloy thick plates welded with GMAW and twin wire GMAW processes

2017 ◽  
Vol 93 (5-8) ◽  
pp. 1809-1817 ◽  
Author(s):  
Lijin Huang ◽  
Xueming Hua ◽  
Dongsheng Wu ◽  
Zhao Jiang ◽  
Fang Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Microstructural Characterization ◽  
Thick Plates ◽  
5083 Aluminum Alloy

Microstructural Characterization of Ultrasonically Welded Aluminum

2005 ◽  
Vol 127 (1) ◽  
pp. 65-74 ◽  
Author(s):  
S. M. Allameh ◽  
C. Mercer ◽  
D. Popoola ◽  
W. O. Soboyejo
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
Weld Zone ◽  
Microstructural Characterization ◽  
Weld Interface ◽  
Fatigue Properties ◽  
Second Phase ◽  
Welding Time ◽  
Second Phase Particles

The microstructure and mechanical properties of ultrasonically welded AA6111-T4 specimens are discussed. The effects of welding time on the mechanical properties of welded joints are investigated. A longer welding time results in a more continuous welded interface and higher yield and fracture strengths. Accordingly, fatigue properties of the welded specimens with longer welding times are improved. The results of electron microscopy on the cross section of ultrasonically welded joints show three distinct zones: weld zone, weld affected zone and compression zone each with a distinct microstructure. TEM results show nanocrystalline grains along with second phase particles in the range of 15–25 nm in the weld zone. Flow patterns consistent with the geometry of weld–tip were observed at the weld interface.

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