Fatigue Properties of 6061-T6 Aluminum Alloy T-Joints Processed by Vacuum Brazing and TIG Welding

Welding dissimilar materials has been widely applied in industries. Some of them are considered this as a strategy to develop their future technology products. Aluminum alloy and stainless steel have differences in physical, thermal, mechanical and metallurgic properties. However, selecting a suitable welding process and welding rods can solve this problem. This research aimed to investigate the T-joint welding between A6061 aluminum alloy and SUS304 stainless steel using new welding rods, Aluma-Steel by the Tungsten Inert Gas (TIG) welding process. The mechanical properties, the characteristics of microstructure, and component analysis of the welds have been investigated by the mechanical testing, scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). As a result, the fracture occurred at the adjacent area between welding seam and A6061 alloys plate. The thermal cracking appeared at central welding-seam along the base metals if high welding current. A large amount of copper elements found in the welds due to using the new welding rod, Aluma-Steel rod.

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Thermal deformation of gas metal arc welding on aluminum alloy T-joints

Engineering Solid Mechanics ◽

10.5267/j.esm.2017.11.003 ◽

2018 ◽

pp. 21-26 ◽

Cited By ~ 2

Author(s):

Mohd Idris Shah Ismail ◽

Mariyam Jameelah Bahari ◽

Norsyafiqah Shuib

Keyword(s):

Aluminum Alloy ◽

Arc Welding ◽

Thermal Deformation ◽

Gas Metal Arc Welding ◽

T Joints ◽

Metal Arc Welding

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Fatigue properties and cracking mechanisms of a 7075 aluminum alloy under axial and torsional loadings

Procedia Structural Integrity ◽

10.1016/j.prostr.2019.12.069 ◽

2019 ◽

Vol 19 ◽

pp. 637-644 ◽

Cited By ~ 1

Author(s):

Y. Li ◽

D. Retraint ◽

H. Xue ◽

T. Gao ◽

Z. Sun

Keyword(s):

Aluminum Alloy ◽

Fatigue Properties ◽

7075 Aluminum Alloy ◽

Cracking Mechanisms

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Enhancement of fatigue properties of 2024-T351 aluminum alloy processed by cryogenic laser peening

Vacuum ◽

10.1016/j.vacuum.2019.02.030 ◽

2019 ◽

Vol 164 ◽

pp. 41-45 ◽

Cited By ~ 2

Author(s):

Jing Li ◽

Aixin Feng ◽

Jianzhong Zhou ◽

Huan Chen ◽

Yunjie Sun ◽

...

Keyword(s):

Aluminum Alloy ◽

Fatigue Properties ◽

Laser Peening

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Joining Dissimilar Metals between Steel and Aluminum by TIG Welding

Materials Science Forum ◽

10.4028/www.scientific.net/msf.819.45 ◽

2015 ◽

Vol 819 ◽

pp. 45-49 ◽

Cited By ~ 1

Author(s):

Shamsul Baharin Jamaludin ◽

Mohd Zahir Abd Latif ◽

Mohd Noor Mazlee ◽

Kamarudin Hussin

Keyword(s):

Shear Strength ◽

Aluminum Alloy ◽

Microstructural Analysis ◽

Welding Process ◽

Welding Current ◽

Tig Welding ◽

Inert Gas ◽

Dissimilar Metals ◽

Tensile Shear Strength ◽

Tensile Shear

The effect of welding current on the joining of mild steel and aluminum 6063 has been investigated. The joining was carried using a tungsten inert gas (TIG) welding. The welding currents used were 30 A to 80 A. The formation of intermetallic reaction layers (IML) and tensile shear strength of the joining were investigated. The result showed that tensile shear strength increased as welding current increased up to 55 A. Microstructural analysis showed that intermetallic reaction layer was formed at the interface between steel and aluminum alloy during welding process. The thickness of IML was decreased with decreasing welding current.

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