Study on abrasive and erosive wear behaviour of Al 6063/TiB2 in situ composites

Sivaprasad, K.; Babu, S.P. Kumaresh; Natarajan, S.; Narayanasamy, R.; Kumar, B. Anil; Dinesh, G. Kumaravel

doi:10.1016/j.msea.2008.09.003

Cited by 93 publications

(34 citation statements)

References 34 publications

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“…Many combinations of fluxes are available [7]. In the present work, K 2 TiF 6 and KBF 4 were used for the synthesis of Al-TiB 2 composites. Reactions (1) and (2) (1)…”

Section: Materials and Synthesis Of Compositementioning

confidence: 99%

“…It results in the unbalanced formation of intermetallic constituents-AlB 2 and TiAl 3 . To increase the recovery of boron, KBF 4 was taken with an excess of 20% relative to the stoichiometric amount to obtain TiB 2 and avoid the formation of other phases [19]. The amount of fluxes and aluminium required to form different concentrations of the TiB 2 in Al-MMC (for a batch of 200 g) is provided in Table 1.…”

Section: Materials and Synthesis Of Compositementioning

confidence: 99%

“…The in situ formation of reinforcements-particularly TiB 2 via halide salt reactions in molten aluminium-is attractive due to fine sizes of the synthesized particles, clean interface and improved wettability. Wear resistance (particularly, abrasive and erosive) increases with the progressive addition of TiB 2 reinforcing particles in aluminium matrix composites [4]. Apart from these structural characteristics, TiB 2 particles have higher thermal conductivity and stability at elevated temperatures than other reinforcements commonly used reinforcements for aluminium matrix composites [5].…”

Section: Introductionmentioning

confidence: 99%

“…Apart from these structural characteristics, TiB 2 particles have higher thermal conductivity and stability at elevated temperatures than other reinforcements commonly used reinforcements for aluminium matrix composites [5]. Some of the synthesis systems for Al-TiB 2 composites are TiO 2 -Al-B, TiO 2 -Al-B-CuO, TiO 2 -Al-B 2 O 3 , NaBH 4 and TiCl 4 and Ti-containing and B-containing salts. The synthesis occurs via a series of chemical reactions which produce sub-micron TiB 2 particles in the aluminium melt [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

Rane

Dhokey

2018

J. Compos. Sci.

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Introduction of TiB 2 reinforcements into aluminium matrices allows composites to be obtained that exhibit excellent mechanical properties and good wear and corrosion resistance. These composites find applications in the automotive, aerospace and marine industries. In the present work, the in situ synthesis of ultrafine TiB 2 particulates in an aluminium matrix was accomplished by reaction synthesis of TiB 2 using K 2 TiF 6 and KBF 4 (in 120% excess to the stoichiometrically needed) fluxes in pre-melted aluminium. Composites were prepared with different concentrations of TiB 2 in (2.5, 5 and 10 wt %) in an aluminium matrix. The holding time of the molten composite in an induction furnace was varied from 10 min to 50 min. The in situ formation of TiB 2 reinforcement and its distribution in cast aluminiummatrix composites was analyzed based on microstructural studies, microhardness measurements and wear tests. The exothermic reaction between the halide fluxes starts after 10 min of holding time and completes before 20 min of holding time. The dominant phase was TiB 2 after 20 min of holding time, while the formation of Ti 3 B 4 was observed as the holding time was extended. The distribution of the reinforcing phases was studied by analyzing the scanning electron microscopy (SEM) images. An optimum holding time (20 min) of the composite melt was determined based on the dominant wear mechanism, microhardness, and phase composition of the composites.

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“…Many combinations of fluxes are available [7]. In the present work, K 2 TiF 6 and KBF 4 were used for the synthesis of Al-TiB 2 composites. Reactions (1) and (2) (1)…”

Section: Materials and Synthesis Of Compositementioning

confidence: 99%

Section: Materials and Synthesis Of Compositementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

Rane

Dhokey

2018

J. Compos. Sci.

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“…On the other hand, there was a great limitation on the amount of TiB 2 particles added to the matrix due to the higher viscosity of the resultant MMCs. Accordingly; several studies have been conducted to syntheses the in situ TiB 2 particulate reinforced Al-based composites with enhanced mechanical properties (Salvador et al, 2003;Tjong and Huo, 2009;Boopathi et al, 2013;Sivaprasada et al, 2008).…”

Section: Science Publicationsmentioning

confidence: 99%

Characterization of Aluminum Alloy-Based Nanocomposites Produced by the Addition of Al-Ti5-B1 to the Matrix Melt

El-Labban

Abdelaziz²,

Mahmoud³

2013

American Journal of Nanotechnology

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The present study is an attempt to produce aluminum matrix nanocomposites using a certain aluminum alloy (which its melt has high fluidity) as a matrix material and reinforced with hard and stable fine (nano-sized) precipitates. Therefore, Al-Ti5-B1 master alloy and Al-Si alloy of high silicon content were proposed for preparation of such nanocomposites. Three nanocomposites were prepared by adding AlTi5-B1 of three different percentages (1, 2 and 3 wt. %) to the melt of aluminum alloy at 710°C for a holding time of 10 min and application of mechanical stirring at this temperature. Finally, the treated melt was squeeze cast. The microstructures were investigated using optical and scanning electron microscopes. Phases and different constituents were analyzed with the aid of EDX and XRD analyzers. The addition of Al-Ti5-B1 master alloy with any percentages (even 1 wt. %) to the melt of aluminum alloy, led to remarkable decrease of the matrix grain size. Moreover, many fine precipitates were detected within the Al-Si matrix such as TiAl 3 phase in the form of flaky and blocky morphology and TiB 2 phase in the nano-sized particles. These precipitates act as heterogeneous sites for nucleation during solidification. The addition of Al-Ti5-B1 master alloy to the Al-Si base metal led to remarkable increase in the average hardness. As the added percentage of Al-Ti5-B1 master alloy is increased, the average hardness value is increased. The average hardness of addition of 3 wt. % Al-Ti5-B1 master alloy reached 130 HV, which was almost twice as high as the hardness of the Al-Si base metal.

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The In‐Situ Technique for Preparing Al‐TiB ₂ and Al‐Al ₃ Ti Composites

Wang

Chen

et al. 2012

Light Metals 2012

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Study on abrasive and erosive wear behaviour of Al 6063/TiB2 in situ composites

Cited by 93 publications

References 34 publications

On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

Characterization of Aluminum Alloy-Based Nanocomposites Produced by the Addition of Al-Ti5-B1 to the Matrix Melt

The In‐Situ Technique for Preparing Al‐TiB ₂ and Al‐Al ₃ Ti Composites

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Study on abrasive and erosive wear behaviour of Al 6063/TiB2 in situ composites

Cited by 93 publications

References 34 publications

On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

On the Formation and Distribution of In Situ Synthesized TiB2 Reinforcements in Cast Aluminium Matrix Composites

Characterization of Aluminum Alloy-Based Nanocomposites Produced by the Addition of Al-Ti5-B1 to the Matrix Melt

The In‐Situ Technique for Preparing Al‐TiB 2 and Al‐Al 3 Ti Composites

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The In‐Situ Technique for Preparing Al‐TiB ₂ and Al‐Al ₃ Ti Composites