Microstructure and Tensile Strength of Butt Joint between AA6063 Aluminum Alloy and AISI304 Stainless Steel by Friction Stir Welding

Sadmai, Karuna; Kaewwichit, Jesada; Roybang, Waraporn; Keawsakul, Nut; Kimapong, Kittipong

doi:10.17703/ijact.2015.3.1.179

Cited by 6 publications

(3 citation statements)

References 8 publications

(8 reference statements)

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“…The authors of this study attributed the reduction in fatigue life to the insufficient diffusion of Fe, Cr, and Ni into the aluminum due to insufficient temperature increase [1]. Studies which tested other aluminum alloys and steels found similar results [2][3][4]. Others found an increase in hardness at the interface of the joint of AA5005 aluminum and St-52 steel, as well as AA1100 and A441 AISI steel, and attributed this quality to the formation of intermetallic compounds [5,6].…”

Section: Introductionmentioning

confidence: 66%

Utilization of XSYTIN-1 Tool in Electrically-Assisted Friction Stir Welding of Dissimilar Metals - Al 6061-T651 to Mild Steel

Shaffer

Grimm

Ragai

et al. 2019

AMR

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Friction stir welding (FSW) is a solid-state metal fusion process that is characterized by several benefits over comparable processes such as a reduction in energy input and low part distortion. This process has been shown to hold great potential in the fusion of dissimilar metals, a technology highly sought after in the aerospace and automotive industries for its promising weight-reduction capabilities. Furthermore, electrically-assisted FSW (EAFSW) is the supplementation of the FSW process with an electrical current. This modification has been shown to improve many parameters; however, the current literature related to this subject is scarce. Herein, the fusion of Al 6061-T651 to mild steel is performed using EAFSW methods. A novel tool constructed a proprietary ceramic, XSYTIN-1, is also tested in this application. It was found that EAFSW improved material flow between the constituent materials; however, was unable to increase the joint strength of the weld. Additionally, it was found that the XSYTIN-1 tool did not exhibit any significant differences when compared to a conventional steel tool.

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Section: Introductionmentioning

confidence: 66%

Utilization of XSYTIN-1 Tool in Electrically-Assisted Friction Stir Welding of Dissimilar Metals - Al 6061-T651 to Mild Steel

Shaffer

Grimm

Ragai

et al. 2019

AMR

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show abstract

“…pin length. The pin thrusting distance [12] when compared to the butt line was 0.1 mm (0.0 mm thrusting distance was a location that the pin side touched the butt line as shown in Fig. 1b.…”

Section: Experimenal Peocedurementioning

confidence: 96%

Study on FSW Butt Joint Properties of Dissimilar Wrought AA6063-T1 Aluminum Alloy and Cast Al-Mg Aluminum Alloy

Kimapong

Taweekaew

Triwanapong

2018

KEM

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This paper focused on applying friction stir weld method on welding a butt joint of wrought6063-T1 aluminum alloy and cast Mg-Si aluminum alloy and studied on effect of various parameterssuch as rotating speeds and travelling speeds. The experiment revealed that a variation of the rotatingand travelling speeds affected to vary the weld quality. Higher rotating speed and higher travellingspeed produced the defects such as voids that directly decreased tensile strength of the joint. Whenthe sound weld metal with the high tensile strength was produced, the failure of the tensile testspecimen was located at the cast aluminum alloy. The average tensile strength of the sound joints was10-15% higher than that of the cast aluminum alloy. Microstructure investigation of the specimenwith the optimum welding parameter revealed that the combination of the aluminum alloys wascompleted without any defect in the weld metal. Compressed force by the welding tool produced thesmall compacted grain in the weld metal and small combined banding area at the interface of boththe cast aluminum alloy and the weld metal.

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“…However, it should be noted that the obtainment of good quality welding joints between aluminum and steel represents a considerable challenge because of their significant relative differences in their mechanical properties, physical properties, and melting temperatures. Specifically, iron–aluminum intermetallic compound (IMC) layers easily form hardened and brittle interface surface areas between the weld and the stainless steel side, which greatly reduces the strength of welded joint [ 9 , 10 , 11 ]. Therefore, in order to ameliorate this circumstance, many different welding methods have been utilized for the welding of aluminum alloys and stainless steel, including friction stir welding [ 4 , 12 ], metal inert gas welding [ 13 , 14 , 15 , 16 , 17 ], laser welding [ 5 , 18 , 19 , 20 , 21 ], resistance sport welding [ 22 ], and ultrasonic welding [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Butt Joints between Stainless Steel SUS304L and Aluminum Alloy A6061-T6 by TIG Welding

Nguyen

Huang³

2018

Materials

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The tungsten inert gas (TIG) welding method most commonly used to weld ferrous metals, nonferrous metals, and other metals since it is simple, easily implemented, and achieves consistent high-quality welds. In this study, butt joints produced between aluminum alloy A6061-T6 and stainless steel SUS304L have been achieved by using TIG welding with ER4047 filler metal. The macrostructure and microstructure of the resulting specimens were analyzed by means of an optical microscope (OM), a scanning electron microscope (SEM), and an energy dispersive X-ray spectrometer (EDS). A uniform intermetallic layer was found at the interface between the stainless steel and the weld seam having a thickness of 2 µm, and the intermetallic compound (IMC) includes Fe4Al13, Fe2Al5, and FeAl3 phases. The micro-hardness and tensile strength of the weld joints were also investigated. Due to Si content in the compensating metal, there was a prevention of iron diffusion into the aluminum, thus hindering the development of the IMC layer and reducing its thickness in such a way that the weld joint strength increases. The analyzed results show that the average micro-hardness of the stainless steel, weld seam, aluminum alloys, and IMC layer were 218 HV, 88.3 HV, 63.3 HV, and 411 HV, respectively. The fracture occurred at the brazed interface, and the ultimate tensile strength value reached 225 MPa.

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Microstructure and Tensile Strength of Butt Joint between AA6063 Aluminum Alloy and AISI304 Stainless Steel by Friction Stir Welding

Abstract: Abstract

Cited by 6 publications

References 8 publications

Utilization of XSYTIN-1 Tool in Electrically-Assisted Friction Stir Welding of Dissimilar Metals - Al 6061-T651 to Mild Steel

Utilization of XSYTIN-1 Tool in Electrically-Assisted Friction Stir Welding of Dissimilar Metals - Al 6061-T651 to Mild Steel

Study on FSW Butt Joint Properties of Dissimilar Wrought AA6063-T1 Aluminum Alloy and Cast Al-Mg Aluminum Alloy

Microstructure and Mechanical Properties of Butt Joints between Stainless Steel SUS304L and Aluminum Alloy A6061-T6 by TIG Welding

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