Characterization of Al–Al4C3 nanocomposites produced by mechanical milling

Santos-Beltrán, A.; Goytia-Reyes, R.; Morales-Rodriguez, H.; Gallegos-Orozco, V.; Santos-Beltrán, M.; Baldenebro-López, F.J.; Martínez-Sánchez, R.

doi:10.1016/j.matchar.2015.06.007

Cited by 23 publications

(9 citation statements)

References 26 publications

(21 reference statements)

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“…), є перспективними через малу вагу, високу міцність і низьку вартість графіту [24]. Зміцнення таких АМК пов'язане із зменшенням розміру зерна та утворенням до 5% карбіду Al 4 C 3 в процесі спікання [25].…”

Section: вступunclassified

Structure and Mechanical Properties of Al–Cu/C Composites Produced by Mechanical Alloying and Solid-State Sintering

Matvienko¹,

Поліщук²,

Rud³

et al. 2019

Metallofiz. Noveishie Tekhnol.

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левих фаз. Розглянуто вплив графітових добавок та вмісту Cu (17 і 33% ваг.) на мікроструктуру та механічні властивості спечених композитів Al-Cu. Обговорюються можливі механізми зміцнення композитів Al-Cu і Al-Cu/C. Ключові слова: Al-Cu/C, металоматричні композити, механічне легування, твердофазне спікання, порошкова металургія. Hypoeutectic and eutectic Al-Cu composites with 5% wt. of graphite additives are prepared using mechanical alloying (MA) of elemental powders and following hot pressing of mixtures at 480-510°C and 30 MPa. The obtained powders and sintered samples are studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). The MA during 8 hours of all powder compositions results in the formation of Cu 9 Al 4 and CuAl 2 phases as well as Al(Cu) solid solution. Subsequent sintering leads to the decomposition of the metastable Cu 9 Al 4 phase. As shown, the crystalline structure of graphite additives transforms into amorphous one during MA, while the consequent sintering results in the Al 4 C 3 carbide formation. Moreover, the introduction of graphite additives leads to increasing of both the highly dispersed particles amount in mechanically alloyed powder and the volume fraction of metastable Cu 9 Al 4 and stable CuAl 2 intermetallic phases. The effects of both graphite additives and Cu content (17 and 33% wt.) on microstructure and mechanical properties of sintered Al-Cu composites are considered. Possible strengthening mechanisms for Al-Cu and Al-Cu/C composites are discussed.

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Section: вступunclassified

Structure and Mechanical Properties of Al–Cu/C Composites Produced by Mechanical Alloying and Solid-State Sintering

Matvienko¹,

Поліщук²,

Rud³

et al. 2019

Metallofiz. Noveishie Tekhnol.

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“…The quenching process was performed at 530ºC for 2 hrs, after that quenched by water to room temperature (≈ 25 ºC ). Subsequently, the aging process was carried out at 175 ºC for various of time (2,4,6,8,10) hrs, after that cooled by air to room temperature. Fig.1 shows the profile of the quenching and the aging process.…”

Section: G Heat Treatment Processmentioning

confidence: 99%

“…These recycling offers several advantages which include their relatively lower production costs, isotropic properties and the possibility of using conventional shaping methods (e.g. Extrusion, forging, and rolling) for component manufacturing [2]. Among the various physical and chemical methods, a mechanical ball-mill technique is recognized as a simple and cost-effective method to produce fine and homogeneous powders [3].…”

mentioning

confidence: 99%

Heat Treatment for an Recycling Aluminum Aa6061 Using Milling Process at Various Holding Aging Time

Mahdi¹,

Mustapa²,

Latif³

et al. 2016

IJET

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Abstract-In this investigation, AA6061 milled particle size was fabricated by milling machine and later compacted by hydraulic press in room temperature. Seven specimens were chosen for the heat treatment process. For reference, one specimen was treated solely by the quenching and another one was treated by the aging only, On top of that, there were five specimens were subjected to various holding times during the aging. The experimental results show that the maximum value of compression strength was 300.47 MPa for the specimen subjected to quenching and aging of holding time 4 hours and the maximum value for microhardness was 100.44 Hv for the same specimen. While the density value was decreased with increasing the holding time. The maximum value of the density was 2.61 g/cm 3 for the specimen (Quenching only). X-ray inspection was detected some of chemical compound were created such as (Al86Fe14) and (Cr13Ni5Si2). Keyword-Aging process, Milling process, Powder metallurgy, Recycling aluminium, AA6061.I. INTRODUCTION 6xxx Al-Mg-Si alloys have been widely used in automotive body panels as main substitute materials for weight reduction [1]. The industry has been focused on the materials as recycling, specifically the materials have been used more and more costly. These recycling offers several advantages which include their relatively lower production costs, isotropic properties and the possibility of using conventional shaping methods (e.g. Extrusion, forging, and rolling) for component manufacturing [2]. Among the various physical and chemical methods, a mechanical ball-mill technique is recognized as a simple and cost-effective method to produce fine and homogeneous powders [3]. During the past 20 years, high energy ball milling has extensively been utilized as a versatile method to produce a variety of advanced compound powders. The main difference between high energy milling by the planetary ball mill, Spex, Attritor mill, etc. and conventional milling is that the former applies much larger doses of energy to particles over time [4]. This large input energy makes high energy mills capable of producing materials with special properties that could not be synthesized by other methods. The milling process produces considerable strain hardening in the Al powder, which is directly reflected on the final properties of the composite powders, therefore, it is needed to treat with heat treatment process [5]. A commercial AA6061 aluminum alloy is one of the Al, Mg, Si(Cu) system alloys that can be significantly hardened by a proper heat treatment. Because of its medium strength, excellent corrosion resistance, and weldability, the AA6061 alloy has been widely used as structural material for construction, transportation and sports [6]. (Lipeng et.al.2015) has been treated aluminium AA6022 by various aging temperature (80, 100, 130 and 170 °C) and various holding times (2,3,4 hrs). He has concluded that the 100 °C by 3hrs is the best attempt. Other than that, there were researchers had been published some other research ...

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“…Much attention is devoted to the development of new composites, since they can exhibit the properties unattainable in conventional nonreinforced materials . Many investigators have studied aluminum matrix composites with carbon reinforcements and possible reaction between aluminum and carbon . Nanopowder application in composites enables improvement of a number of key properties; however, the temperature range of such composite application must be studied.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Many investigators have studied aluminum matrix composites with carbon reinforcements and possible reaction between aluminum and carbon. [4][5][6][7][8][9][10][11] Nanopowder application in composites enables improvement of a number of key properties; however, the temperature range of such composite application must be studied.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of fullerenes and carbon onions application for reinforcing the aluminum matrix in the metal matrix composites

Попов

Борунова

Senatulin

et al. 2020

Surface & Interface Analysis

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Aluminum matrix composites with fullerenes and carbon onions as reinforcing nanoparticles were studied by X‐ray diffraction (XRD) and differential scanning calorimetry (DSC). Composites were produced by mechanical alloying. It is demonstrated that aluminum carbide formation (the reaction proceeds between aluminum and carbon nanoparticles) starts at 300 to 370°C, which is much lower compared with the starting temperature of the reaction between aluminum and carbon macromaterials.

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Characterization of Al–Al4C3 nanocomposites produced by mechanical milling

Cited by 23 publications

References 26 publications

Structure and Mechanical Properties of Al–Cu/C Composites Produced by Mechanical Alloying and Solid-State Sintering

Structure and Mechanical Properties of Al–Cu/C Composites Produced by Mechanical Alloying and Solid-State Sintering

Heat Treatment for an Recycling Aluminum Aa6061 Using Milling Process at Various Holding Aging Time

Peculiarities of fullerenes and carbon onions application for reinforcing the aluminum matrix in the metal matrix composites

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