Friction Stir Welding of AA6082 Thin Aluminium Alloy Reinforced with Al2O3 Nanoparticles
04 Sep 2019-Transactions of The Indian Ceramic Society (Taylor & Francis)-Vol. 78, Iss: 3, pp 137-145
TL;DR: In this paper, AA6082-T6 thin aluminium alloy plates of 2 mm thickness were friction stir welded using fine ceramic Al2O3 nanoparticles as the reinforcing materials between the adjo...
Abstract: In this present investigation, AA6082-T6 thin aluminium alloy plates of 2 mm thickness were friction stir welded using fine ceramic Al2O3 nanoparticles as the reinforcing materials between the adjo...
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TL;DR: In this article, the current status of nanoparticle reinforcement FSW process is analyzed and various properties associated with reinforced joints are presented with the mechanism of the relationship between microstructure and properties.
Abstract: Nanomaterial reinforced friction stir welding (FSW) is an emerging domain, as it delivers a promising method for enhancing joint properties by making composite joints. Composite joints can enhance surface properties like hardness, strength, corrosion resistance, wear resistance, fatigue life, electrical conductance. Over few years many publications have been reported on the application of nanoparticles reinforcement in FSW joints. The present review critically analyses the current status of nanoparticle reinforcement FSW process. Firstly need, type, behaviour, intrinsic properties of nanoparticles used in FSW are discussed. Then, the microstructural examinations of reinforced joints are analysed. Followed by, various properties associated with reinforced joints are presented with the mechanism of the relationship between microstructure and properties. Finally, various methods of deposition of nanoparticle in FSW is discussed. At last prospects of reinforced FSW are explored followed by concluding remarks.
32 citations
TL;DR: In this article, the mechanical and microstructural properties of friction stir welded similar DP600 steel were investigated and the sheets were butt welded with a single pass and three different rota...
Abstract: In the present work, mechanical and microstructural properties of friction stir welded similar DP600 steel were investigated. The sheets were butt welded with a single pass and three different rota...
10 citations
Cites methods from "Friction Stir Welding of AA6082 Thi..."
...The planimetric method was used to calculate the average grain size number [42],...
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TL;DR: In this article, the effect of adding novel biochar microparticle into the welding zone of dissimilar friction stir welding of AISI-SAE 1010 (steel) and CDA 101 (copper) alloys was investigated.
Abstract: This present work investigates the effect of adding novel biochar microparticle into the welding zone of dissimilar friction stir welding of AISI-SAE 1010 (steel)–CDA 101 (copper) alloys. The primary aim of this work was to produce efficient weld joints in AISI-SAE 1010–CDA 101 alloys using biochar as solid lubricant via friction stir welding process. The biochar particles were prepared from rice husk biomass via carbonization process. The welding was performed using tapered pin profiled tool with rotational speed of 900 rpm, traverse speed of 30 mm/min, axial load of 5 KN, dwell time of 5s, plunging depth of 0.2mm, and biochar additions of 0.5, 1, 2, and 4wt%. The highest tensile strength of 205 MPa, elongation of 44%, yield strength of 177MPa, strain value of 36, and Vickers hardness of 121 were observed for FSW joints made using 2wt% of biochar content. Large addition of biochar up to 4wt% marginally affects the properties. Similarly, the fatigue strength of 157MPa was observed for weld made using 2wt% of biochar. The microstructure of biochar-assisted weld nugget shows highly refined less thermally affected grains. The grains were in equiaxial with distortion-free. The EDAX report confirms the presence of copper, iron, and carbon on the weld nugget, which indicates fine mixing of parent metals with solid lubricant. These mechanical properties improved environmental friendly dissimilar welding method could be used in industrial applications such as automobile, aerospace, construction, defense, medical, energy where high strength with high durable weld joints are required to meet the current technology demand, and process economy.
9 citations
TL;DR: Filling Friction Stir Welding (FFSW) is an FSW completing process, in which the exit-holes at the end of friction stir welded lines are filled by a rotational semi-consumable pin this paper.
Abstract: Filling Friction Stir Welding (FFSW) is an FSW completing process, in which the exit-holes at the end of friction stir welded lines are filled by a rotational semi-consumable pin. In the present st...
9 citations
13 Jan 2021
TL;DR: In this article, aluminum hybrid composites using bamboo leaf ash (BLA) and alumina have been fabricated via stir casting and the effect of the EDM machining process parameters on the output responses such as surface roughness (Ra) and material removal rate (MRR) are evaluated using grey relational analysis.
Abstract: In this research work, aluminum hybrid composites using bamboo leaf ash (BLA) and alumina have been fabricated via stir casting. Three hybrid composites viz: A713 + 2%BLA + 2%Al2O3, A713 + 2%BLA + 4%Al2O3, A713 + 4%BLA + 2%Al2O3 are fabricated successfully and EDM machining of these three composites is performed. The EDM machining experiments of the three hybrid composites, have been designed using Taguchi L27 orthogonal array design of experiments (DOE) considering current (A), duty cycle (%), gap voltage (V) and different percentage composition of the reinforcements. The effect of the EDM machining process parameters on the output responses such as surface roughness (Ra) and material removal rate (MRR) are evaluated using grey relational analysis.
6 citations
References
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TL;DR: Fully reversed axial fatigue tests have been performed in order to investigate the fatigue behavior in the friction stir welds of 1050 O, 5083 O, 6061 T6 and 7075 T6 aluminium alloys as mentioned in this paper.
101 citations
TL;DR: In this paper, a threaded tool of WC-Co hard alloy is used to weld a cast AMC composed of Al-Si matrix and 30 vol%SiC particulates so as to examine the wear characteristics of the tool.
Abstract: Tool wear is a key issue for the friction stir welding (FSW) of aluminum matrix composites (AMCs), especially when the volume fraction of reinforcing particulates is relatively high. In this study, a threaded tool of WC–Co hard alloy is used to weld a cast AMC composed of Al–Si matrix and 30 vol%SiC particulates so as to examine the wear characteristics of the tool. Experimental results indicate that the tool wear is appreciable although the shoulder size and pin length are changed slightly. The radial wear of the pin is very different at different locations of the pin, and the maximum wear is finally produced at a location of about one-third pin length from the pin root. The welding speed has a decisive effect on radial wear rate of the pin, and the maximum wear rate is produced in the initial welding.
97 citations
TL;DR: In this paper, the formation of intermetallic compounds during dissimilar friction stir welding of brass to aluminum and its effect on the mechanical behavior of joint were studied, and the results showed that utilizing rotation speeds higher than 400 rpm leads to gradual formation of interfacial compounds in the stir zone and at the interface.
85 citations
TL;DR: In this article, a tool for welding was rotated at speeds ranging from 500 to 3 000 r/min under a constant traverse speed of 100 mm/min, and the results showed that at all tool rotation speeds, defect-free welds were successfully obtained.
83 citations
15 Nov 2013-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, solid-state joining of powder-metallurgy processed (P/M) Al-2-vol% Al 2 O 3 (15nm) nanocomposite by friction stir welding (FSW) was studied.
Abstract: Solid-state joining of powder-metallurgy processed (P/M) Al–2 vol% Al 2 O 3 (15 nm) nanocomposite by friction stir welding (FSW) was studied. The nanocomposite was prepared via high-energy mechanical milling followed by hot consolidation processes. The microstructure, mechanical properties and fracture behavior of the welds were evaluated and compared with FSWed wrought 1050 aluminum sheets (WAS). We have found that unlike WAS that can processed at various FSW conditions, the working window for the solid-state joining of P/M nanocomposite is narrow and only feasible at relatively high heating inputs. Microstructural studies showed the formation of melted zones with high hardness at the advancing side of P/M nanocomposite while dynamic recrystallization (DRX) caused grain refinement in WAS specimens with loss of hardness. Consequently, tensile testing revealed higher ultimate strength (UTS) of FSWed P/M nanocomposite (compared to base material) in contrast to WAS welds. Fractographic studies showed that the failure of FSWed P/M nanocomposite was initiated and propagated from the interface of melted zone and thermo-mechanical affected zone (TMAZ) in a catastrophic manner.
82 citations