AlN nanoparticle-reinforced nanocrystalline Al matrix composites: Fabrication and mechanical properties

Liu, Y.Q.; Cong, Huai‐Ping; Wang, W.; Sun, Chenghua; Cheng, Hui‐Ming

doi:10.1016/j.msea.2008.12.045

Cited by 106 publications

(49 citation statements)

References 31 publications

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“…The property of the AMCs depends on the property of the matrix and the reinforcement. Different types of reinforcement materials, ranging from typical ceramics, such as Al 2 O 3, AlN and SiC [7][8][9], to more unconventional reinforcements, such as quasicrystals [10,11] and complex metallic alloys (CMAs) [12], have been successfully used as reinforcements in MMCs. Other possible candidates as reinforcing agents in MMCs are amorphous, partially amorphous and nanocrystalline Al-based alloys, which have attracted widespread attention as potential candidates for structural as well as functional applications due to their high strength combined with low density [13,14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size on Microstructure and Mechanical Properties of Al-Based Composite Reinforced with 10 Vol.% Mechanically Alloyed Mg-7.4%Al Particles

et al. 2016

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Abstract:The effect of Mg-7.4%Al reinforcement particle size on the microstructure and mechanical properties in pure Al matrix composites was investigated. The samples were prepared by hot consolidation using 10 vol.% reinforcement in different size ranges, D, 0 < D < 20 µm (0-20 µm), 20 ≤ D < 40 µm (20-40 µm), 40 ≤ D < 80 µm (40-80 µm) and 80 ≤ D < 100 µm (80-100 µm). The result reveals that particle size has a strong influence on the yield strength, ultimate tensile strength and percentage elongation. As the particle size decreases from 80 ≤ D < 100 µm to 0 < D < 20 µm, both tensile strength and ductility increases from 195 MPa to 295 MPa and 3% to 4% respectively, due to the reduced ligament size and particle fracturing. Wear test results also corroborate the size effect, where accelerated wear is observed in the composite samples reinforced with coarse particles.

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Section: Introductionmentioning

confidence: 99%

Effect of Particle Size on Microstructure and Mechanical Properties of Al-Based Composite Reinforced with 10 Vol.% Mechanically Alloyed Mg-7.4%Al Particles

et al. 2016

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“…Al6061 alloys exhibit high corrosion resistance, excellent formability, and a high strength-to-weight ratio [1][2][3]. They are promising candidates for structural materials in the automotive, aircraft, military, and marine industries.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Aging Behavior of Al6061 Composites Reinforced with Y2O3 and TiC

Chen

Lin

2017

Metals

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Abstract:The reinforcement particles play important roles in determining microstructural development and properties of Al6061 composites. In the present work, the aging behavior of Al6061 reinforced with Y 2 O 3 and TiC particles produced via mechanical alloying are investigated. The results indicate that the peak-aged Al6061 alloy without reinforcement demonstrates the highest hardness, which corresponds to the formation of the Mg-Si precipitates. However, precipitation formation is not observed in the case of the Al6061 composites, which can be attributed to the fact that the Mg-Si clusters and GP zones are inhibited by the presence of the reinforcement particles. The solute elements segregate in the complex oxides or carbides and contribute to only a slight increase in hardness.

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“…[1][2][3] Ceramic particulates such as borides, carbides, oxides and nitrides are added to MMCs to improve their elastic modulus, wear resistance, creep and strength. [4][5] There are different routes by which MMCs can be manufactured, and among all the liquid-stat processes are considered to have the most potential for engineering applications in terms of production capacity and cost efficiency.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Al2O3 reinforcement particles in austenitic stainless steel depending on their size and concentration

Kračun¹,

Podgornik²,

Tehovnik³

et al. 2017

Mater. Tehnol.

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Achieving a uniform distribution of reinforcement particles within a matrix is one of the challenges that impacts directly on the properties and quality of a composite material. Therefore, the aim of the present work was to investigate the influence of the reinforcing Al2O3 particles' concentration and size on their distribution in reinforced austenite stainless steel. Austenitic stainless steel reinforced with (0.5, 1.0 and 2.5) % of mass fractions of Al2O3 particles was produced by a conventional casting route. In this study, an innovative pre-dispersion approach for the addition of particles into a steel melt was designed. The results of this investigation indicate that the concentration and size of the Al2O3 particles has an impact on the distribution of the reinforcement within the matrix. When the weight percent increased to 2.5 the concentration ratio of the particles' distribution decreases towards the bottom of the cast ingot. In this case also the size of particles starts to play a role, with the larger particle size leading to an increased degree of incorporating particles into the steel matrix. The larger the particles the more particles are found in the cast ingot. Keywords: metal matrix composite, reinforced particles, distribution, conventional casting method Doseganje enakomerne porazdelitve delcev v matrici je eden izmed izzivov, ki direktno vplivajo na lastnosti in kvaliteto kompozitnih materialov. Namen raziskave je bil ugotoviti porazdelitev delcev v mikrostrukturi jekla glede na dodano koncentracijo in velikost. Med procesom konvencionalnega litja avstenitnega nerjavnega jekla so bili dodani delci Al2O3 v ute`nih procentih (0,5, 1,0 in 2,5). V tej {tudiji smo uporabili inovativni pristop dispergiranja delcev pred dodajanjem v jekleno talino. Rezultati raziskave ka`ejo, da je koncentracija in velikost Al2O3 delcev vplivala na porazdelitev delcev v matrici. S pove~anjem ute`nega procenta dodanih delcev na 2,5 se je koncentracijsko razmerje delcev zmanj{alo proti dnu ulitega ingota. V tem primeru ima pomemben vpliv na porazdelitev tudi velikost delcev, ve~ji kot so delci ve~jih je vklju~enih v matrico. Ve~ji kot so delci, ve~se jih nahaja v ulitem ingotu. Klju~ne besede: kovinski kompoziti, utrjevalni delci, porazdelitev, metoda konvencionalnega litja

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AlN nanoparticle-reinforced nanocrystalline Al matrix composites: Fabrication and mechanical properties

Cited by 106 publications

References 31 publications

Effect of Particle Size on Microstructure and Mechanical Properties of Al-Based Composite Reinforced with 10 Vol.% Mechanically Alloyed Mg-7.4%Al Particles

Effect of Particle Size on Microstructure and Mechanical Properties of Al-Based Composite Reinforced with 10 Vol.% Mechanically Alloyed Mg-7.4%Al Particles

A Study on the Aging Behavior of Al6061 Composites Reinforced with Y2O3 and TiC

Distribution of Al2O3 reinforcement particles in austenitic stainless steel depending on their size and concentration

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