Development of Al 6063–TiB2 in situ composites

Ramesh, C.S.; Ahamed, Abrar; Channabasappa, B.H.; Keshavamurthy, R.

doi:10.1016/j.matdes.2009.10.019

Cited by 144 publications

(57 citation statements)

References 37 publications

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“…In-situ metal matrix composites in which reinforcement is generated within the alloy offers an advantage of clean interface with minimal interfacial reaction between reinforcement and matrix [4] [5]. Amongst many types of reinforcements used [3,[6][7][8][9][10][11][12][13], TiB 2 reinforcement in aluminium alloys using salt based insitu methods offers great advantages such as minimal reactivity [7], clean interface [14], sound thermal conductivity [15] and high elastic modulus and hardness [16]. TiB 2 particles acts as a heterogeneous nucleating site for α-Al [11] controlling the grain size, thereby improves the mechanical properties of the Al matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Mathew

Mandal

Kumar

et al. 2017

Journal of Alloys and Compounds

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Permanent WRAP URL:http://wrap.warwick.ac.uk/87711 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for-profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT Abstract:The present work deals with the effect of semisolid processing on microstructure and mechanical properties of Al-4.5 % Cu -5% TiB 2 in-situ cast composites. The composite was prepared by flux assisted synthesis in which TiB 2 particles were formed in-situ through an exothermic reaction between K 2 TiF 6 and KBF 4 halide salts. Al-4.5wt% Cu alloy and Al-4.5%Cu-5 % TiB 2 composite samples were forged in semisolid state with 0.3 volume fraction of liquid. Semisolid forging was carried out for two forge reductions (30% and 50% forge reductions). Microstructure studies show that the semi-solid forging results in uniform distribution of TiB 2 particles and Al 2 Cu particles in the composite. Further, TiB 2 particles play a dual role as grain refiners as well as reinforcements of composites. EBSD and nano indentation studies shows that semisolid forging results in dynamic recrystallization of grains in the composite with significant grain refinement which leads to a marked increase in hardness and elastic modulus of the alloy as well as the composite.

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Section: Introductionmentioning

confidence: 99%

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Mathew

Mandal

Kumar

et al. 2017

Journal of Alloys and Compounds

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“…5 and 10 wt. % TiB 2 particles reinforced aluminum (Al6063) metal matrix composites produced by using master alloys of Al-Ti & B by stir casting process to obtain the material for the experiment [6] [7] [8] [9]. Limited published work is only available on the sliding wear behavior of composites with TiB 2 as reinforcement material [10] [11] [12].…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles

Krishnamurthy¹,

Ashebre²,

Venkatesh³

2017

JMMCE

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The influence of titanium diboride (TiB 2 ) loading on the dry sliding wear characteristics of aluminum 6063 matrix alloy-titanium diboride (Al/TiB 2 ) composite materials has been assessed using a pin-on disc wear tester at different loads. The composites with 5 and 10 wt% of fine TiB 2 particles were fabricated using stir casting technique. For comparison, as-cast of the base alloy were made under the same processing applied for Al/TiB 2 composites. The hardness of the composite materials was measured using Brinell hardness tester. Scanning electron microscopy (SEM) was used to analyze the wear surfaces of samples. The results indicate that fine TiB 2 particles markedly improved the wear performance of the aluminum 6063 matrix alloy. The coefficient of friction decreases with increase in the amount of TiB 2 , but this effect was more pronounced in dry sliding. Hardness of composites increased with increasing TiB 2 loading. The wear rates increase with increase in load and dependent upon TiB 2 loading in the base alloy. Among the composites tested, Al/TiB 2 composites containing 10 wt% TiB 2 exhibited superior wear resistance over the base alloy and 5 wt% Al/TiB 2 composites. These observations were correlated in terms of the TiB 2 loading in base alloy which resulted in the variations of the hardness.

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“…[16][17][18] This has attended to enhanced analysis interest for appraising the result of the kind of weight fraction of reinforcement within the matrix and for various different procedures that area unit accustomed manufacture of MMCs. 19,20 During this investigation varied AA7075 composites were ready by reinforcing completely different weight fractions of activated carbon and their hardness and tensile strength of PAC and thermal properties of matrix composites were considered. Literature from preceding works in a period of the terrain of AA7075-PAC composite demonstrated that no effort had been practiced for deciding the TGA analysis and FT-IR analysis of aluminium metal matrix composite.…”

Section: Introductionmentioning

confidence: 99%

Influence of Activated Carbon Particles on Microstructure and Thermal Analysis of Aa7075 Metal Matrix Composites

2017

Rasayan J Chem

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The present work represents the AA7075 and Powdered Activated Carbon (PAC) metal matrix composite was processed by down pouring stir casting technique. Invented metal matrix composites were subjected to hardness, tensile test, microstructure analysis, X-ray diffraction, energy dispersive spectrum, FT-IR analysis and thermal analysis. AA7075 metal matrix composites containing matrix and reinforcement. Microstructure suggests the relatively uniform distribution of carbon particles in matrix alloy. X-ray diffraction analysis and EDAX had been making sure the presence of activated carbon particles and its uniform distribution over the aluminium matrix. FTIR trace aging process, the simplest results have been got employing combo of complementary analytical strategies. Hardness and elongation test of AA7075-PAC composite enormously greater in comparison with basic AA7075 alloy and few helpful conclusions have been drawn.

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Development of Al 6063–TiB2 in situ composites

Cited by 144 publications

References 37 publications

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles

Influence of Activated Carbon Particles on Microstructure and Thermal Analysis of Aa7075 Metal Matrix Composites

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Development of Al 6063–TiB2 in situ composites

Cited by 144 publications

References 37 publications

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB&lt;sub&gt;2&lt;/sub&gt; Particles

Influence of Activated Carbon Particles on Microstructure and Thermal Analysis of Aa7075 Metal Matrix Composites

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Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles