Critical analysis of friction stir-based manufacturing processes

Külekçi, Mustafa Kemal; Eşme, Uğur; Buldum, Berat Barış

doi:10.1007/s00170-015-8071-5

Cited by 49 publications

(17 citation statements)

References 70 publications

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“…The results showed 360 HV10 hardness in the joint area, which means that the hardness in the area of the titanium base metal and aluminium is increased by 6% and 20%, respectively. The increase in hardness has been reported by other researchers as well [31][32][33][34][35][36]. For example, Kitamura showed that smaller particles increase the strength of the structure, and that hardness is also directly associated with strength, and as the grains have smaller size in the stirred zone the hardness of the stirred zone increases [36].…”

Section: Analysis Of Hardnesssupporting

confidence: 69%

“…The presence of recrystallized and equiaxial grains is one of the main characteristics of friction stir welding that has been reported by other researchers [34]. These grains are formed because of plastic deformation caused by the rotational movement and the progressive tool followed by dynamic recrystallization [35]. In the thermo-mechanically affected zone, deformed and elongated grains are observed.…”

Section: Titanium Microstructurementioning

confidence: 78%

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Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

2017

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SummaryIn this study, a joint between commercially pure titanium alloy and 7075 aluminium alloy was butt welded by using friction stir welding at a rotational speed of 1120 rpm and a traverse speed of 50 mmmin -1 . The evaluation of hardness and microstructure was performed by using scanning electron microscopy. The phases in the weld area were identified by applying the X-ray diffraction technique and the Energy Dispersive X-ray Spectroscopy (EDS) analysis was used for the evaluation of intermetallic compounds of the weld area. The weld zone is cone-shaped and consists of aluminium and titanium particles that play an important role in increasing hardness and tensile strength. The weld area has three zones, namely the titanium base metal zone, the aluminium base metal zone, and the titanium-aluminium intermetallic compound mixed zone. It was also observed that the joint area on the aluminium side includes the stirred area, the thermo-mechanically affected zone, and the heat-affected zone, while the titanium joint area contains the stirred zone and the heat-affected zone. The hardness value of the weld area was around 360 HV, which means that in this area, compared to the base metal of titanium and aluminium, hardness has increased by 6% and 20%, respectively. This can be attributed to severe plastic deformation and formation of intermetallic compounds of titanium and aluminium in this area.

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Section: Analysis Of Hardnesssupporting

confidence: 69%

Section: Titanium Microstructurementioning

confidence: 78%

Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

2017

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“…10 Hence, FSP technology has drawn researcher's attention towards manufacturing fine-grained substrate, surface composites, metallurgical modification, and casting modification. [11][12][13][14][15] In past few years, many researchers have reported the fabrication of the surface composites (SCs) using FSP, after the first Al-SiC-based SC synthesized by Mishra et al 7 Soon after, numerous investigations made on the SCs have reported the effect of various processing parameters like tool rotational speed, traverse speed (TS), number of passes, reinforcement particle size, etc. on the particle distribution in the SZ and the resulting mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Elucidation of the role of rotation speed and stirring direction on AA 7075-B₄C surface composites formulated by friction stir processing

Rana

Badheka

2017

Proceedings of the Institution of Mechanical Engineers, Part L:

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In the present research investigation, aluminum–boron carbide surface composites were fabricated using friction stir processing technique. Boron carbide powder particles were incorporated into AA 7075 substrate by the thermomechanical mixing generated through multiple passes of friction stir processing. A parametric investigation was conducted to encounter homogeneous boron carbide powder particles distribution in the substrate matrix by employing various parameter combination sets like tool rotational speed and alteration in tool travel direction. Microstructural characterizations were performed by means of optical microscopy, scanning electron microscopy and X-ray diffraction analysis to investigate on boron carbide powder particles distribution, phases present, and grain morphologies in the substrate matrix. Homogeneous distribution of boron carbide powder particles was observed for surface composites processed at lowest tool rotational speed. Uniform boron carbide powder particles distribution in the processed zone along with various strengthening mechanisms brought about two-fold increase in microhardness and wear resistance of the prepared composites.

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“…1). Friction stir welding was patented in 1991 by British scientists of The Welding Institute (TWI) as an assembly method, but lately it has also been developed as a surface modification method due to its numerous technical, economic and environmental advantages [1,3].…”

Section: Introductionmentioning

confidence: 99%

Influence of friction stir process parameters on surface quality of aluminum alloy A2017

et al. 2017

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Critical analysis of friction stir-based manufacturing processes

Cited by 49 publications

References 70 publications

Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

Elucidation of the role of rotation speed and stirring direction on AA 7075-B₄C surface composites formulated by friction stir processing

Influence of friction stir process parameters on surface quality of aluminum alloy A2017

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Critical analysis of friction stir-based manufacturing processes

Cited by 49 publications

References 70 publications

Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

Friction Stir Welding of Dissimilar Joints Between Commercially Pure Titanium Alloy and 7075 Aluminium Alloy

Elucidation of the role of rotation speed and stirring direction on AA 7075-B4C surface composites formulated by friction stir processing

Influence of friction stir process parameters on surface quality of aluminum alloy A2017

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Elucidation of the role of rotation speed and stirring direction on AA 7075-B₄C surface composites formulated by friction stir processing