Microstructure and microhardness of AA1050/TiC surface composite fabricated using friction stir processing

Thangarasu, A.; Murugan, N.; Dinaharan, I.; Vijay, S.J.

doi:10.1007/s12046-012-0097-x

Cited by 37 publications

(26 citation statements)

References 18 publications

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“…The hardness value of the SZ increased by 58 % when compared to the base metal for sample C1. Thangarasu 21 suggested four methods of hardening in FSW MMC:…”

Section: Microhardness Profilingmentioning

confidence: 99%

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Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir welding

Abegunde¹,

Akinlabi²,

Madyira³

2017

Mater. tehnol.

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A study was conducted on the material characterization of aluminium (Al) and titanium carbide (TiC) metal-matrix composites produced via friction stir processing. Different process parameters were employed for the welding process. Rotational speeds of 1600 min -1 to 2000 min -1 , at an interval of 200 min -1 and traverse speeds of 100 mm/min to 300 mm/min, at an interval of 100 mm/min were employed for the welding conducted on an Intelligent Stir Welding for Industry and Research (I-STIR) Process Development System (PDS) platform. The characterizations carried out include light microscopy and the scanning electron microscopy analyses combined with Energy-Dispersive Spectroscopy (SEM/EDS) techniques to investigate the particle distribution, microstructural evolution and the chemical analysis of the welded samples. Vickers microhardness tests were used to determine the hardness distribution of the welded zone and tensile testing was conducted to quantify the strength of the welded area compared to the base metal in order to establish the optimal process parameters. Based on the results obtained from the characterization analysis, it was found that the process parameters played a major role in the microstructural evolution. A homogenous distribution of the TiC particles was observed at a high rotational speed of 2000 min -1 and a low traverse speed of 100 mm/min. The highest hardness value was measured at the stir zone of the weld due to the presence of the TiC reinforcement particles. The tensile strength also increased as the rotational speed increased and 92 % joint efficiency was recorded in a sample produced at 2000 min -1 and 100 mm/min. The EDS analysis revealed that Al, Ti and C made up the composition formed in the stir zone. The optimum process parameter setting was found to be at 2000 min -1 and 100 mm/min and can be recommended. Keywords: aluminium, friction stir welding, mechanical properties, metal matrix composite, microstructural evolution, titanium carbide V tem raziskovalnem delu je bila izvedena obse`na {tudija karakterizacije kovinskega kompozita aluminija (Al ) in titanovega karbida (TiC) izdelanega z me{alno tornim varjenjem. Za postopek varjenja so bili uporabljeni razli~ni procesni parametri. Rotacijski hitrosti 1600 min -1 do 2000 min -1 , v razmaku po 200 min -1 , in pre~nih hitrostih od 100 mm/min do 300 mm/min, v intervalu 100 mm/min, je bilo uporabljeno za varjenje na industrijski platformi za razvoj in raziskave (PDS) sistema inteligentnega varjenja z me{anjem (I-Stir). Izvedena karakterizacija vklju~uje svetlobno mikroskopijo in vrsti~no elektronsko mikroskopijo v kombinaciji z energijo disperzijsko spektroskopijo (SEM/EDS), za preiskavo porazdelitve delcev, razvoja mikrostrukture in kemijsko analizo zvarjenih vzorcev. Za dolo~itev optimalnih procesnih parametrov je bil uporabljen Vickers preizkus mikrotrdote, s katerim je bila dolo~ena porazdelitev trdote na podro~ju zvara, z nateznim preizkusom pa je bila dolo~ena trdnost zvara v primerjavi z osnovnim materialom. Na osnovi rezultato...

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“…The hardness value of the SZ increased by 58 % when compared to the base metal for sample C1. Thangarasu 21 suggested four methods of hardening in FSW MMC:…”

Section: Microhardness Profilingmentioning

confidence: 99%

“…[19][20][21][22] These studies concluded that grain refinement was achieved using the FSP process. An improved particle distribution and better mechanical properties were also observed.…”

Section: Introductionmentioning

confidence: 99%

Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir welding

Abegunde¹,

Akinlabi²,

Madyira³

2017

Mater. tehnol.

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“…The corrosion properties of aluminum sheets reinforced with alumina, corroded in tetraoxosulphate (iv) acid as corrosion medium, revealed better corrosion properties compared to unreinforced samples [7]. Titanium carbide particulate addition in the weld seam of aluminum 1050 substrate by friction stir welding process, also revealed better mechanical properties [8]. The wear resistance property and the hardness values of aluminum-titanium-carbide composite were higher than those of the base material [9].…”

Section: Introductionmentioning

confidence: 97%

Characterization of corrosion behavior of aluminum welds reinforced with copper powder

Abima

Akinlabi

Hassan

et al. 2020

Materialwissenschaft Werkst

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This paper reports on the corrosion behavior of aluminum metal inert gas (MIG) welds reinforced with copper powder particles. Pure aluminum, AA1100 sheets, machined to a 45°v-grooved were used for this experiment. Copper powder particle reinforced samples and unreinforced samples were investigated. The corrosion behavior of the samples were investigated in 3.5 % sodium chloride (NaCl) solution, using the potentiodynamic polarization technique. The results revealed that the corrosion resistance for reinforced samples were higher than those for unreinforced samples. Hence the corrosion resistance of aluminum AA1100 welds can be improved by the addition of copper powder particle in the weld seam, and it is therefore recommended for typical industrial applications.Keywords: Corrosion behavior / aluminum welds / copper powder / metal inert gas welding method / NaCl solution / potentiodynamic polarization Schlüsselwörter: Korrosionsverhalten / Aluminiumschweißnähte / Kupferpulver / Metall-Schutzgasschweißen / NaCl Lösung / potenziodynamische Polarisation

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“…9 These composites can suffer a great loss in ductility and toughness due to the incorporation of non-deformable ceramic reinforcements, which limits their wide applications to a certain extent. 10,11 However, the nature of the technique used to fabricate particle-reinforced metal-matrix composites (MMCs) has been shown to have a significant effect on the product's mechanical properties and hence the applications for which it is suitable. [12][13][14][15] Surfacemodification techniques such as high-energy laser beam, plasma spraying, cast sinter and electron beam irradiation have been developed over the past two decades to fabricate Surface Metal Matrix Composites (SMMCs).…”

Section: Introductionmentioning

confidence: 99%

“…A significant improvement in the wear resistance of the nano-composite layer was observed as compared to that of the as-received substrate and the enhanced properties are attributed to the uniform dispersion of hard nano-sized TiC reinforcements in a matrix of ultra-fine dynamically recrystallized grains. A. Thangarasu et al 10 fabricated TiC particulates (»2 μm) and reinforced them with an aluminium matrix composite (AMC) using FSP. The powders were compacted into a groove and a single pass FSP was carried out using a tool rotational speed of 1600 min -1 and a processing speed of 60 mm/min.…”

Section: Introductionmentioning

confidence: 99%

Friction-stir processing of a composite aluminium alloy (AA 1050) reinforced with titanium carbide powder

Sanusi¹,

Akinlabi²

2017

Mater. Tehnol.

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In this study the friction-stir processing (FSP) technique was applied for the development of surface composites of aluminium alloy (AA 1050) reinforced with titanium carbide (TiC) powder of particle size range below 60 μm compressed into the groove. Rotational speeds of 1200 min -1 and 1600 min -1 and the travel rates of (100, 200 and 300) mm/min were used for the process. This study investigates the effect of processing parameters on the wear-resistance behavior of friction-stir processed Al-TiC composites. This was achieved through microstructural characterization using optical and scanning electron (SEM) microscopes equipped with Oxford energy-dispersion spectrometry (EDS) (Tescan), microhardness profiling and wear resistance tests. From the results, it was found that the processing parameters influenced the distribution of the TiC particles. The microhardness profiling of the processed samples revealed an increase in the hardness value compared to the parent material. The wear-resistance test results confirmed the FSP technique enhanced properties in surface engineering. Keywords: aluminium alloy, friction-stir processing, microhardness, microstructure, surface composite, TiC V {tudiji je bila uporabljena tehnika me{anja s trenjem (angl. FSP) za razvoj povr{inskih kompozitov iz aluminijeve zlitine (AA 1050), oja~anih s titanovim karbidom (TiC) v prahu, z velikostjo delcev v obmo~ju pod 60 μm, stisnjenih v utor. Pri tem postopku so bile uporabljene hitrosti vrtenja 1200 min -1 in 1600 min -1 in hitrosti pomikanja (100, 200 in 300) mm/min. [tudija raziskuje vpliv procesnih parametrov na odpornost kompozitov Al-TiCi proti obrabi s trenjem. Izvedena je bila mikrostrukturna karakterizacija z uporabo svetlobnega in vrsti~nega elektronskega mikroskopa (SEM), opremljenega z Oxford energijsko disperzijsko spektrometrijo (EDS) (Tescan), profiliranja mikrotrdote in preizkusa obrabe. Iz rezultatov je bilo ugotovljeno, da so parametri obdelave vplivali na distribucijo TiC delcev. Profiliranje mikrotrdote na vzorcih je pokazalo, da je vrednost trdote pove~ana v primerjavi z osnovnim materialom. Rezultati testa odpornosti obrabe so potrdili, da FSP-tehnika izbolj{a lastnosti povr{ine.

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Microstructure and microhardness of AA1050/TiC surface composite fabricated using friction stir processing

Cited by 37 publications

References 18 publications

Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir welding

Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir welding

Characterization of corrosion behavior of aluminum welds reinforced with copper powder

Friction-stir processing of a composite aluminium alloy (AA 1050) reinforced with titanium carbide powder

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