Al—(1, 3, 5, 7, 10 vol%) SiC nanocomposites were produced by mechanical alloying (MA) and double pressing/sintering route. The characteristics of the milled powders consolidate specimens examined using high resolution scanning electron microscopy X-ray diffraction method. Compression hardness tests used to study effect volume fraction on strength Al—SiC nanocomposites. It was shown that with increasing fraction, finer particles narrower size distribution smaller crystallite are obtained...

The current lack of quantitative knowledge on processing-microstructure–property relationships is one the major bottlenecks in today's rapidly expanding field additive manufacturing. This centrally rooted nature processing, leading to complex microstructural features. Experimentally-guided modeling can offer reliable solutions for safe application additively manufactured materials. In this work, we combine a set systematic experiments and address creep anisotropy its correlation with...

Mixtures of aluminium powder and nanoscaled SiC particles (n-SiC) at various volume fractions 0, 1, 3, 5, 7 10 are comilled in a high energy planetary ball mill under an argon atmosphere to produce nanocrystalline Al–SiC nanocomposites. High resolution scanning electron microscopy (HRSEM), X-ray diffraction (XRD) method, laser particle size analysis density measurement were used study the morphological changes microstructural evolution occurred during mechanical alloying. composite with...

In the present study, Mg nanocomposites with a high volume fraction (10 vol %) of SiC particles were fabricated by two approaches: mechanical milling and mixing, followed powder consolidation steps, including isostatic cold pressing, sintering, extrusion. A uniform distribution content in fully dense matrix ultrafine microstructure was successfully achieved mechanically milled composites. The effect nano- submicron-sized on properties evaluated. Scanning electron microscopy (SEM),...

This paper presents experimental results on the synthesis of nanostructured aluminium matrix nanocomposite powders by comilling nanoscaled SiC and Al2O3 particles micrometric powder. The effect nanometric reinforcement mechanical milling (MA) process soft was studied scanning electron microscopy, X-ray diffraction (XRD), transmission laser particle size analyser standard metallographic techniques. It found that at early stage milling, nanoparticles are smeared surface powder thus do not...

Abstract The production of fully dense nanocomposites with a homogeneous distribution nanoparticles through powder metallurgy (PM) techniques is challenging. Additionally to mechanical milling, pressing and sintering, final consolidation process needed densify the nanocomposite. Hot isostatic (HIP) promising alternative method other hot forming processes eliminate porosity in these PM parts. In contrast extrusion, for instance, isotropic properties are achieved, textures, as they usually...

Abstract Understanding the role of nanoparticles in magnesium (Mg)‐based materials and protective coating provides valuable information to achieve an optimized combination mechanical corrosion protection properties Mg nanocomposites. The present study investigates effects SiC on behavior structure Mg‐SiC composites substrates coated by plasma electrolytic oxidation (PEO). Moreover, influence different volume fractions n up 10% galvanic reactions between matrix particles was also...

Aluminum powder and various volume fractions of SiC particles with an average diameter 50 nm were milled by a high-energy planetary ball mill to produce nanocrystalline Al–SiC nanocomposite powders. Double pressing/sintering process was used consolidate powders cylindrical specimens. It shown that double cycle cold pressing sintering can be utilized obtain high density parts without using hot-working step. High resolution scanning electron microscopy (HRSEM), X-ray diffraction (XRD) laser...

Magnesium powder in micron scale and various volume fractions of SiC particles with an average diameter 50 nm were co-milled by a high energy planetary ball mill for up to 25 h produce Mg-SiC nanocomposite powders. The milled powders characterized scanning electron microscopy (SEM) laser particle size analysis (PSA) study morphological evolutions. Furthermore, XRD, TEM, EDAX SEM analyses performed investigate the microstructure magnesium matrix distribution SiC-reinforcement. It was shown...

Aluminum powder and 5 vol.% SiC particles with an average diameter of 50 nm are milled to produce Al-SiC nanocomposite. Al matrix composite containing the particle size 1 μm was also produced characterized examine influence nanometric micrometric reinforcement on mechanical milling process. It shown that presence hard ceramic leads a faster work-hardening promotes onset fracture process particles. The effect stages found be slightly less pronounced as compared SiC. analysis XRD patterns...

Achieving uniformly distributed reinforcement particles in a dense matrix is crucial for enhancing the mechanical properties of nanocomposites. This study focuses on fabricating Mg-SiC nanocomposites with high-volume fraction SiC (10 vol.%) using cold isostatic pressing (CIP). The objective to obtain fully material uniform dispersion nanoparticles. particle size impact compressibility and density distribution milled studied through elastoplastic Modified Drucker-Prager Cap (MDPC) model...

Abstract Porous magnesium has a great potential to be used as degradable bone scaffolds. In this study, porous with 35% percolating porosity been successfully fabricated through powder metallurgy route utilizing space holders. The intrinsic mechanical properties of the were measured by nanoindentation testing and analyzed Oliver–Pharr method. Afterward, ceramic coating on surface was performed plasma electrolytic oxidation (PEO) treatment in silicate‐based solution. morphology composition...

Abstract Metal‐ceramic nanocomposites are promising candidates for applications necessitating light weight and excellent fatigue resistance. We produced Mg–SiC from mechanically milled powders, yielding a homogeneous nanocrystalline structure quasistatic strength values. Little is known, however, about the behavior of such composites. Here, we used load increase tests on macroscale to yield estimation values endurance limit. Fatigue increased significantly materials processed by powder...

Improving the ductile deformation behavior of Mg-SiC nanocomposites without compromising strength is critical to enhancing their mechanical properties. are produced through milling, cold isostatic pressing, sintering, and hot extrusion processes. This study investigates uniaxial stress–strain response nanocomposite compared pure Mg samples with milling process. The was investigated by two-dimensional (2D) digital image correlation (DIC) at two macroscopic microscopic scales, employing light...

The current lack of quantitative knowledge on processing-microstructure-property relationships is one the major bottlenecks in today’s rapidly expanding field additive manufacturing. This centrally rooted nature processing, leading to complex microstructural features. Experimentally-guided modeling can offer reliable solutions for safe application additively manufactured materials. In this work, we combine a set systematic experiments and address creep anisotropy its correlation with...