Microstructure and mechanical properties of dissimilar friction stir welding of 6061-to-7050 aluminum alloys

Rodriguez, R.I.; Jordon, J.B.; Allison, P. G.; Rushing, Timothy W.; Garcia, Lyan I.

doi:10.1016/j.matdes.2015.05.074

Cited by 179 publications

(75 citation statements)

References 37 publications

(46 reference statements)

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“…Additionally, the researchers also studied on AA6082 and AA7075 to determine the effect of friction stir welding parameters on the mechanical and microstructural characteristics of welded joints [1,17]. Since the friction stir welding is an asymmetric welding process, the placement of materials according to the tool has critical effects on the characteristics of a weld seam [11,16,[20][21][22]. Studies have shown that the mechanical properties are highly affected by the placement of the materials [11][12][13][14][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Since the friction stir welding is an asymmetric welding process, the placement of materials according to the tool has critical effects on the characteristics of a weld seam [11,16,[20][21][22]. Studies have shown that the mechanical properties are highly affected by the placement of the materials [11][12][13][14][18][19][20][21]. During the dissimilar friction stir welding, the behavior of material flow in the nugget zone affects the corrosion behavior, hardness, mechanical properties and microstructural characteristics [16] due to the change in the volume of alloys [11,16,22,23].…”

Section: Introductionmentioning

confidence: 99%

“…During the dissimilar friction stir welding, the behavior of material flow in the nugget zone affects the corrosion behavior, hardness, mechanical properties and microstructural characteristics [16] due to the change in the volume of alloys [11,16,22,23]. The common conclusion regarding the effect of material placement is that when the highstrength material is placed on the advancing side, the force on the tool would be lower and the nugget zone is dominated by the alloy that is higher one [12,15,18,19,20,24]. If the harder alloy is placed on the advancing side, the material flow become easier to fill the hole behind the pin [18].…”

Section: Introductionmentioning

confidence: 99%

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Identification of the pin offset effect on the friction stir welding (FSW) via Taguchi – Grey relational analysis: A Case study for AA 7075 – AA 6013 alloys

Kasman

2019

Materialwissenschaft Werkst

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The aim of this work is to present a case study relating to the dissimilar friction stir welding (FSW) ability of AA 7075-T651 and AA 6013-T6 by applying pin offset technique. An orthogonal array L18 was conducted to perform the overlapped weld seams using three different values of pin offset, welding speed and tool rotational speed along with two different pin profiles determine the impact of welding parameters on the tensile properties of friction stir welded joints. The nugget zone for each of overlapped weld seams exhibited a complex structure and also, the pin offset and profile also were found to have a great impact on the microstructural evolution of the nugget zone. The ultimate tensile strength, elongation at the rapture and bending strength of welded joints were measured in the ranges of 194-215 MPa, 1.79-3.34 % and 203-352 MPa. From the Taguchi based Grey relational analysis, the optimum welding condition was determined for the welded joint performed using a single fluted pin profile with the zero pin offset, tool rotational speed of 630 min À 1 and welding speed of 63 mm/min. Microstructural and macrostructural observations revealed that welded joints exhibiting lower tensile strength are consistent of various types of defects (e. g. cracks, tunnels and cavities). The fracture location of welded joints was found to be on the heat affected zone and between the heat affected zone and AA 6013-base metal. The tool and pin wear was not observed during the welding applications Keywords: Friction stir welding / pin offset / mechanical properties / grey relational analysis Schlüsselwörter: Rührreibschweißen / Pin-Offset / mechanische Eigenschaften / grau relationale Analyse

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identification of the pin offset effect on the friction stir welding (FSW) via Taguchi – Grey relational analysis: A Case study for AA 7075 – AA 6013 alloys

Kasman

2019

Materialwissenschaft Werkst

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“…S Serajzadeh et al focused on the microstructure, effect of tool geometry, residual stresses, and temperature field simulation regarding the dissimilar FSW 5086/6061 [17,18,19,20]. Furthermore, other dissimilar FSW aluminum alloys also were investigated, such as the AA2024/AA7075 couple [21] and the AA6061/AA7050 couple [22]. …”

Section: Introductionmentioning

confidence: 99%

A Study on Dissimilar Friction Stir Welded between the Al–Li–Cu and the Al–Zn–Mg–Cu Alloys

Deng

Fan

et al. 2018

Materials

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In this paper, the microstructure of friction stir welded between the Al–Li–Cu alloy and the Al–Zn–Mg–Cu alloy was studied using optical microscope(OM), electronic backscattered diffraction (EBSD), SEM, and TEM. The hardness profile revealed that the range of heat affect zone for the Al–Zn–Mg–Cu alloy was slightly wider than the Al–Li–Cu alloy when they suffered from the thermal transient. Additionally, the characterization of precipitates inside the different zones was obviously different, which corresponded to the microhardness distribution profile. At the periphery of the kissing line, the Al–Li–Cu and the Al–Zn–Mg–Cu alloys mutually diffused during the weld process. The magnesium element in the Al–Zn–Mg–Cu alloy diffused into the Al–Li–Cu alloy. But the copper and zinc had no change because of the low diffusion coefficient in aluminum. The heat affected zone of the Al–Zn–Mg–Cu alloy showed a higher corrosion susceptibility immersed into the corrosion environment, and the Al–Li–Cu alloy did not show severe corrosion.

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“…Microstructure analysis of the cross-section of the joints revealed distinct lamellar bands and various degrees of intermixing that were correlated with tool rotational speed. Due to the distinct mechanical properties of the two alloys, micro-hardness measurements showed a consistent asymmetric hardness distribution profile across the weld nugget, regardless of tool rotational speed [9]. The properties of aluminium alloys is investicated by friction stir welding (FSW) process.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Mechanical Properties of Friction Stir Butt Welded Joints of Aluminium 6061-T6 under Oblique Loading

Maneiah¹,

Rao²,

Raju³

2017

IJAERS

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Microstructure and mechanical properties of dissimilar friction stir welding of 6061-to-7050 aluminum alloys

Cited by 179 publications

References 37 publications

Identification of the pin offset effect on the friction stir welding (FSW) via Taguchi – Grey relational analysis: A Case study for AA 7075 – AA 6013 alloys

Identification of the pin offset effect on the friction stir welding (FSW) via Taguchi – Grey relational analysis: A Case study for AA 7075 – AA 6013 alloys

A Study on Dissimilar Friction Stir Welded between the Al–Li–Cu and the Al–Zn–Mg–Cu Alloys

Experimental Investigation on Mechanical Properties of Friction Stir Butt Welded Joints of Aluminium 6061-T6 under Oblique Loading

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